I've been fairly happy with my Eris for quite some time and didn't seem to have any of the major problems people have reported here however through my Employer I get a much better monthly deal with Sprint and their plans are already cheaper to begin with. I know the Evo is upon us but I wanted a phone I could get basically for free so decided to give the Samsung Moment a try. I knew the Eris was a bit slow (although it didn't bother me much) but after using this Moment for a few days I must say there is a night and day difference. The Moment has a 900mhz cpu made by Samsung themselves I believe and it is ridiculous how much faster this phone does just about everything. On top of that the call quality is better, the battery life is better, and even the bundled apps Sprint includes like their tv service is nice. Unlike some Samsung phones this is more or less stock android 2.1, to do a true speed comparison I've been using a 3rd party home app on my Eris so installed that on the Moment as well so I don't believe it was Sense alone that is slowing the Eris down. The Moment didn't seem to get the greatest reviews when it first came out but I think a lot of that was because of it not having 2.1 which it does now ship with.