Heh, I just traded my Epic 4G for the XPRT, I am glad I did, while Samsung has some awesome hardware, I love the Treo feel of the XPRT and the Motorola Blur, etc work great, I just use Launcher Pro since I purchased it.
Before I had to use K9 mail, Mail droid, and Touchdown for Exchange for my email needs, now, I just use the native app that comes with the XPRT. The Exchange settings on the XPRT allow you to set the time you need to input your Exchange pin/password to get into your phone, not so on the Epic, everytime you powered the phone, you had to input the security pin/password. (sorry, little rant about the annoying Exchange issue)
All of my games that played on the Epic, play just as smooth on the XPRT if not better. The Epic rocked, but just love this style of phone. When the sales guy tried to sell me the Nexus, I passed, there are things that should come standard (LED notification, SD expansion) on a phone of that caliber but I guess not.