I've had it for a few months now and I love it.
Easy interface, and I love the way the conversations are stored.

Only problems, to me, are:

-even if you delete something, it stays on their server for an unknown amount of time.
-every message is stored on their server, so theoretically they can read everything.
- the POP3 access doesn't work for me. 0o


But that's fine for me, considering you're allowed to have up to a 10 MB attachemnt. ^_^