I took the plunge Friday morning. Best decsision I have made. Don't get me wrong, the 3D is a great phone, but it really wasn't as big of a jump coming from the EVO 4G as I had thought it would have been. The screen is gorgeous compared to the 3D, even with the screen res being lower. Text on web pages is very crisp, but again, you don't get as much to display. Everything I throw at this phone runs super smooth. I loved Sense, but one of the 1st things I would do is ditch it since it is such a memory hog. The GPS is very quick and very accurate compared to the original Galaxy phones. Even in my basement, it'll get a pretty good lock and usually within 3-5 seconds. As soon as I picked up the EpTouch and left the store, I called my wife, and she thought I was on a landline. She says it definitely sounds 100% better than the 3D did. Places where my 3D would drop calls (which my 4G never did), the EpTouch doesn't bat an eye. The phone is a little bit wider and taller, but were talking mm's here, and it makes that up in that it is a lot thinner. It weighs substantially less, and in fact, less than the Nexus S 4G. I got pretty decent battery life with the 3D, UNTIL I turned on bluetooth and started using the headset. HTC really needs to go back to the drawing boards when it comes to bluetooth stacks and drivers! There is no reason why it should suck the battery like a vampire. On the EpTouch, much better battery life, especially when using bluetooth!
I've always preferred HTC to other brands, but this time, Samsung has hit a homerun! People complain that the build quality feels cheap, but I personally think it feels fine. I have heard no creaks while holding and handling the phone, and see no flex. I think a lot of people just like to see shiny chrome plastic, then think its built more durable... TouchWiz isn't really all that bad, and I have been using it pretty solid the last couple of days. My favorite launcher is GO Launcher EX, but I am trying out TW for now...