On day 17 with mine, this phone is absolutely the shiznit! Everything works, its fast, the screen is bright and crisp, the battery life is amazing especially after dealing with the EVO 4G and 3D, overall, very solid. The screen size some say is to big, but, I find it to be perfect! I can easily reach all functions 1 handed. The weight and phones physical shape is just perfect. Purchased my wife's phone on Monday the 19th to replace her Nexus S 4G which she hated, and was looking to go back to the iPhone 5 when it came out, but now that she has her EpTouch, she is completely thrilled with Android! Every time I look around she is on it
I got around to rooting both of them yesterday with the stock rom (no clockwork until an official build comes out) mainly for tethering. I only experienced LOS once, and I think it was caused more by I was on the phone talking to someone, came home, my Airave took over the call, and when I hung up, it lost signal and didn't get it back. A quick reboot fixed that and I haven't seen it again. My signal compared to my 3D is night and day difference. I have yet not been able to make a phone call, get email, not receive a txt, nor have I seen my phone roam. I drive anywhere from 75-180 miles a day, and it takes me to all corners of MD. Even in the boondocks I have great signal.
I have always been a fan of HTC, but, sorry, this phone blows the doors off! HTC blows at making bluetooth drivers that don't suck the life out of your battery. On my 3D, if I used my bluetooth, by 2pm, the phone was down to 15% or less (coming off charge at 5:30am). So naturally, as soon as I was done with bluetooth, I would turn it off. With the EpTouch, I leave bluetooth on all the time, along with wifi when not even connected, and I can easily go from 5:30am to 9pm on a charge. The 4G sleep function is better than HTC's as well.
The funny thing is, when I upgraded to the 3D from the 4G, I was never really wowed by the phone. I mean, yes it felt faster, but Sense is such a memory hog. I loved the lockscreen on the 3D, but again, I already had it on my 4G, so it wasn't really new. On the other hand, as soon as I picked up the EpTouch launch morning, I was like WOW! And it hasn't stopped wowing me yet! Awesome job Samsung and Sprint for bringing a great phone!
BTW... Sprint is now advertising this phone in its own commercials during todays football games. Pretty cool!