I too started with freecad, abandoned it because of bugs. Switched to fusion 360 and then now I am using onshape.

The productivity gain goin to fusion was about 10 fold. I think onshape is even better tho. I particularly like the assembly system.

The assembly system is very nice. Once I learned you could enter variables and equations into most of the operations & constraint fields in OnShape, my ability to model in it became much better. It's great for placing multiple symmetric attachment points onto parts to construct assemblies for example.