I've been using my Galaxy S III on AT&T for a little over two weeks now and I've got to say that it's a fantastic phone. With that I'm going to type out a brief Pros and Cons review recapping my experience so far. Pros: Call quality is suburb. Reception is great; the phone stayed on HSPA+ in spotty areas where my older iPhone 4 would drop down to EDGE. Speaking of reception. LTE is awesome! Constant speeds of (D/U) 20Mbps/10Mbps with peaks into the 30's. Battery life on several occasions has gone beyond my expectations. After a four hour roadtrip of constant Pandora streaming and web browsing with moderate brightness the device still had a 73% charge. My iPhone 4 on this same road trip would be on the verge of the dreaded 20% warning. Speaking of brightness! Even at '0%' I can see everything fine on the display. If it wasn't for that pesky sun[joking] I would never need to turn it up. The camera is certainly an upgrade. Not a massive leap compared to my iPhone 4, but Auto-Focus and Micro shots are much more impressive with a noticeable amount of detail that my iPhone 4 wouldn't of picked up on. Cons: By default the device only comes with five or six wallpapers. None of the stock Google wallpapers exist on the device without manually downloading them. The stock Samsung keyboard has become unresponsive on multiple occasions while typing out a text message. S-Voice isn't worth using. I'd love to disable it. I'm not a big fan of TouchWiz. Too much of an overlay over the stock OS. I can't be bothered to change that as I'm not as big into technology as I once was and rooting the device or installing a custom ROM is too much effort. I just want it to work. Too many default applications from AT&T and Samsung. Why would I pay $10 a month to use AT&T navigator when Google Maps provides the same service for free? The camera doesn't perform very well in low light situations. There's hardly any noise, but in areas that are too dark the phone will not pick up on any light source what so ever. That wraps it up for now. I may or may not add to the list as I continue to use the device.