OK cool. I just looked and I have the Samsung t619, one version below yours. The only thing I don't like about it is that I have a hard time taking good pics with the camera (despite it being 1.3 Mpixels) and there aren't many tunes to choose from.
I just got the phone a couple of hours ago. I've got it hooked up to charge and I've been playing around with it a little bit. I think the sliding top might take some getting use to. But other than that it seems like a pretty easy phone to use.
Oh and it didn't come with the usb cord to use w/the pc so I guess that is sold seperatly.