The Rav4 was an otherwise decent vehicle, but they managed to make even controlling the radio a huge pain in the ass. The touchscreen was not easy to use, couldn't be used without looking (I rent a lot of cars, and have yet to meet a real-button radio that I couldn't control by feel). Some of this was made up for by having steering wheel controls, but they weren't sufficient and for anything besides volume/preset controls, I still had to look at the screen to see what I was about to click on.
There was otherwise some cool technology in there. The connection to my phone with bluetooth was the best implementation I have seen yet and the back-up camera was nifty for parallel parking an unfamiliar car (although I always wonder about those cameras...they let you see stuff you wouldn't normally see, but you lose the field of view and situational awareness that comes from actually turning your head like you are supposed to while reversing. Why not put the screen behind you so you can see it while looking backwards?). I'd say we are probably in a transitional phase. They can do all of this cool stuff, but they haven't figured out how to make it easy and intuitive. Better voice controls are probably part of it (and steering wheel radio controls are great once you've got your radio presets), but the current touchscreen guis are terrible.