I use AutoCAD and have used CADKEY, Solid Works, and Inventor as well as others. Most are quite similar, and most have a large learning curve. (I've been doing cad for 25 years or more, so...) If the system you use works, why not continue to use it? If you are thinking of expanding and/or becoming more professional, then would be the time to start learning something else. BUT, as Rich says, it will take time to become proficient.
CAD use
I use AutoCAD and have used CADKEY, Solid Works, and Inventor as well as others. Most are quite similar, and most have a large learning curve. (I've been doing cad for 25 years or more, so...) If the system you use works, why not continue to use it? If you are thinking of expanding and/or becoming more professional, then would be the time to start learning something else. BUT, as Rich says, it will take time to become proficient.
Rick Crawford at Smoky Forge