As far as usage goes, my plan is $150/month for unlimited everything with Verizon and this phone. For that same price with the iphone, I got unlimited call/data but only 200 text. Not to mention where I live, At&t can be sketchy as far as coverage goes.
I like the SmartTouch technology. The fact that you actually push the screen IMO makes it a little more accurate than the iPhone. It will highlight what you want to push before you click it making for a more accurate choice. The phone also seems much much faster than the iPhone I tested.
Overall I am very happy with it so far. Although I liked the iPhone, in comparision I think I got a better deal with things like being able to insure it, having unlimited text, etc.