Back in the day, my complaints were the obvious ones you might expect from a teenager... things that every other computer on the market had that we didn't, such as an actual graphics chip (w/animated hardware sprites & MOBs, collision detection, hardware scrolling, etc.), a sound chip...
...but...
In retrospect, I think we did fine without those things. Just having CPU-driven graphics and simple, piezoelectric sound made the Apple ][ easier for people to develop for, the software tended to be less buggy and if the software tweaks were done right, other platforms had trouble keeping up (look at Karateka, so example).