I like that it is very easy to use for both novice users as well experienced ones; It offers many options of different types of layouts such as 2D or 3d which makes designing more efficient than other CAD programs available in market today (especially with price tag).
The program itself has some bugs when using multiple windows at once but this can be fixed by increasing memory size - there are also several addons out here if you're looking into making your own customizations so don't worry about being restricted! We have been able solve our problems related mostly to design efficiency since we were working closely together within one team before switching over from another product called AutoDesk Inventor Pro 2013R3.