There are two things that make QGIS my go-to GIS tool. First, the community that surrounds QGIS is absolutely fantastic. I've done some fairly advanced work with GIS software, mainly consisting of mapping sales territories across Canada for a Fortune 500 company. Not used to this particular style of GIS application, I needed a lot of help to get me off the ground and familiar with the tools. There is an incredible amount of support online, in the form of forums and tutorials. If feeling uneasy about picking up a new piece of software, this is the one for you. Second, I really appreciate the software itself. Open source applications can often suffer from feature glut, but QGIS does a great job of balancing a ton of features with a clean and understandable interface. Now that I am familiar with it, I find that it still has many of the advanced features of expensive solutions. Review collected by and hosted on G2.com.

One issue that I ran across was with the French language. When working with words that contained French characters, specifically exporting said characters, the characters were lost. This might be an issue for other languages, but I never investigated. It might be a concern for those who will be using this tool with languages other than English. Review collected by and hosted on G2.com.

I like it since it is the perfect tool to make your maps in a fast and very visual way because you are creating your own layers on top of the map (downloaded from openstreet map or your own maps) and can create and paint to show what you want all on a map with your legend for any project.

You have at your disposal all this gallery of maps to download with plugin QuickMapServices.

OpenStreetMaps (Topographic, Cycle Map, Landscape and Public Transportation)

Google (Physical, Streets, Hybrid and Satellite)

Bing (Road, Aerial and Aerial with Labels)

MapQuest (Open Aerial)

Stamen (Toner, Watercolor and Terrain)

Apple iPhotos (IPhotos Map) Review collected by and hosted on G2.com.

I do not like it because it is not intuitive at all, I had to learn from tutorials or explanations from my classmates because it has many menus and more complex things can be done than simply creating .shp layers on a map. Review collected by and hosted on G2.com.

It is free and of high quality, apart from the great contributions that the community has made in such important areas for tele-detection and other satellite image management tools. Another important aspect is the breadth that it has for managing private and free extensions, you can use projects from ArcGis to SAGA Gis, it has no limits and is constantly updated. It's a marvel. Review collected by and hosted on G2.com.

I could improve the final presentation of the maps, it's my main annoyance at work. Other software such as ArcGis offers a very high level of expertise when preparing the project for printing, it is the only thing that should be improved because in short it is a great working tool for those of us who love geomatics. It is unfair to identify something negative but it needs to follow its path of growth as it has done all these years. My respects to QGIS. Review collected by and hosted on G2.com.

Professional GIS system without high costs.

QGIS is a flexible GIS software. Plug-ins solve many tasks.

This is free software.

The program is being developed all the time.

You can get free community support.

The possibility of modeling groundwater using MODFLOW and related programs. Review collected by and hosted on G2.com.

QGIS works only on one core of the processor, which slows down its operation. Sometimes the program freezes during complicated calculations. Sometimes there are problems when installing plugins. Not all plugins have documentation. Review collected by and hosted on G2.com.

I love this software. It took me a little while to move from using ESRI's product to this, but once you get used to it, it works great. Plus my favorite thing is that I don't have to dual boot operating systems because QGIS runs on OSX. Review collected by and hosted on G2.com.

There are some functions that will crash my program. Anything with clustering (knn) with a lot of data points won't play well with my setup. Review collected by and hosted on G2.com.

Open source and free! Plugins are easy to install and upload and it can accept .shp files. Review collected by and hosted on G2.com.

Querying and manipulating the data is trickier and isn't as intuitive as I would like. Review collected by and hosted on G2.com.

In the time I've been using the program, it seems to me that it has many advantages. It is a free program, very easy to download and install. In case of doubts about the tools, you can find guidance from other users in the online community. It has a wide range of tools, from the simplest to the most advanced. It offers facilities to link postGIS databases. Review collected by and hosted on G2.com.

It is good software, but it has many weaknesses regarding its stability. It experiences sudden crashes. Additionally, it is tedious that each add-on must be downloaded individually. For new users, its interface is not so intuitive. Review collected by and hosted on G2.com.

What I like most about QGIS is that it is a free software that is rapidly growing and developing, competing with major leading programs in the GIS world. Additionally, it has user-friendly features on its platform for managing and manipulating geographic data for GIS users and administrators.

On the other hand, there are interesting elements in this software, such as the plugin tool, where you can download applications from a repository of pre-existing tools or those developed by other users via an internet connection. I find this type of software advantage wonderful for creating and continuing to motivate innovation in this field. Review collected by and hosted on G2.com.

Although it is a very competitive GIS program, it presents certain instabilities if the platform is overloaded with too much information. For this, it is preferable to work with a number of entities and attributes according to the characteristics of the computer where it is installed. Review collected by and hosted on G2.com.

QGIS is an excellent GIS tool that has been strengthening over the years. It is not necessary to pay an expensive license to use all the options it offers us and that are very useful, especially for professionals who rely on the use of GIS for the development of our work and research. It is also user-friendly, meaning it is very easy to use, especially if you have previously handled a GIS tool. I also like the wide variety of plugins it offers us and that allows us to solve almost any problem. Review collected by and hosted on G2.com.

This software unfortunately tends to be unstable, as unexpected shutdowns sometimes occur. At times, I have had problems because it does not execute certain actions and I have to restart the program to execute the action successfully. On the other hand, the quality of the cartographic output is weak compared to other software. Review collected by and hosted on G2.com.

The possibility of using a robust GIS, with multiple applications and options, is presented by QGIS. It has become the main tool for spatial analysis for all those who cannot opt for a paid GIS. QGIS supports almost any type of geospatial file, such as a shapefile, .tab, raster file, among others, and it also has multiple extensions that allow the user to adapt the tool to their work style. QGIS can be linked with GRASS databases, which greatly enhances the ability to perform satellite and radar image analysis with this free software. Additionally, there is the possibility of manipulating the interface, since it is open source, and managing the program's tools according to the needs of each person or company. Review collected by and hosted on G2.com.

Like all free software, it has its disadvantages, the main one being the instability of the program in many processes; it may perform them incompletely, stop processing them without apparent cause, or experience sudden crashes from which the user cannot escape and that slow down their work. Another drawback is the continuous updates, which result in many versions of the program, with minimal changes and without very significant improvements. Review collected by and hosted on G2.com.