I had to change from sticks to wheel about 6 years ago as I was struggling with my fingers. I bought myself a cheapy wheel, an entry level Futaba 40meg am at the time, and was instantly better in my driving. Going from full lock left to full lock right is a lot more fluid a motion, where as doing that with sticks felt like 2 movements, 1 going up hill to go 2 downhill. Braking is easier too, but does take a while to get used to. Having said that, I have "borrowed" someones stubby stick controller when they had problems with their car, and I was trying to help set it up, and it was easier to use, but take into account that my driving was also much improved.
Like anything, you need to make adjustments, but either borrow or buy an entry level ontroller before spending out on something better (but check the feel of the wheel and it's travel, this is a major issue for me).
My current wheel is a KO Helios EX-10 which I've had for about 6 years now, and spent what I considered a small fortune at the time for it, but it's a more reasonable price now (or the equivalent at least). I'm aving to send it off to get fixed, so have gotten a "cheap" replacement in the meantime, which is a Hong-nor cheapy that was on offer. Apart from the sterring range being a lot less than my KO, and the feel of the wheel making me go "ugh", it's not a bad little radio. It's doesn't have any memory options, but as a stand in, it'll do me for a while
