ZWCAD has advantages in it's interface, ZWCAD always keeps clear and simple with classical Windows style interface. This may not look so “pretty” but it fits most of the old end users needs, and also is much easier for new users to learn to use it.
A simple interface means that it doesn’t cost too much in system resources. With a lower configuration work station computer is enought to start working, resulting in lower costs.
ZWCAD provides almost 90% of other CAD’s functions, especially those frequently used ones taking less storage space. The program is just around 300MB, compared to others that my take over 4.5GB or more. This is an advantage again because can save the hardware and software resource for users to cut the cost.
Lack of support for other operating systems, ZWCAD only support Windows systems.
For the 2011 version, ZWCAD do not support Polysolid, and other 3D tools. Do not support Presspull command to create solid from any closed objects, faces or regions.
Do not support Extract Edges, which can gain the solid’s 3D profile.
And it depends on what you're working on, you feel the lack of lighting and photorealistic reproduction effects.
Generally ZWCAD is still not as strong as AutoCAD, mainly reflected in the user interface, some advanced management features and expecially in 3D modeling functions.
The characteristic that caught our attention in the company is the cost-efficiency. You can buy ZWCAD with a relatively lower and affordable price with almost the same function as other CAD solution.
It meets the designers’ demand as well as saves budget for the company.