The Samsung Galaxy S II has been my first Android device I have owned coming from the iPhone 4 and previously owning an iPhone 3GS. The phones build quality is its weakest feature. The phone is extremely thin, but it feels too light and "plastic-y". The screen is phenomenal. The color and contrast are astounding. It is blazing fast with the 1.2 GHz processor and 1GB of RAM. I truly believe the camera is just as good or even better than the iPhone 4S. It produces amazing photos and videos-- A worthy replacement of a point and shoot. TouchWiz isn't as bad as the other skins that manufacturers put out, but you can always root the device and get a OEM or custom ROM to your liking. Battery life has been fantastic. I would go as far as saying that it's the same battery life that I had with my iPhone 4. Overall, I would still say it is one of the best Android phones on the market for AT&T.