It is open source and has a very interactive data visualization. It is for everyone for a beginner as well as professional level. Orange supports visual programming and it executes a simple as well as complex data analysis. It is used to create beautiful and interesting graphics. Orange supports extend functionality. It supports cross platform GUI. Advanced functions for expert level are included. But it will take lots of patience and practice to reach that level. The training, contact support and implementation can be easily monitored.
Above all, the GUI is very attractive and simple to access. It helps neophyte students to study it perfectly and implement on will.
The install is big since you need to install QT. Machine learning is not handled uniformly between the different libraries.
Orange is weak in classical statistics; although it can compute basic statistical properties of the data, it provides no widgets for statistical testing
Reporting capabilities are limited to exporting visual representations of data models.
Problematic if your algorithm is super advanced because few of the special data mining techniques might not be supported by Orange tool.
Easy and user friendly to use.
I have used it for learning purpose in the last year. For now, I am working on the algorithm to optimize the already built HRMS system. I am trying to activate auto allocation of the admin and trainer for which I have created an algorithm. I am analyzing the same using the Orange tool.