Pros: Beautiful styling.
Screen is amazingly detailed with a higher resolution than any other phone T-Mobile currently offers.
Wifi capability.
Syncs great with a computer.
Feels sturdy and very well-built.
Keyboard seems small at first but I love it now.
Windows Media Player is great.
You can tether it as a modem.
E-mail management (either Outlook or MyEmail) is very easy to use.
Cons: Sometimes managing your missed, incoming, and outgoing calls is not intuitive.
As everyone else has mentioned, the volume strip is a little funny and its best to just set and turn it off.
Battery is touchy. I have to charge mine every night.
Summary: I'd buy it again.