Looks good, not over-complicated and a good selection of seeded threads, topics and initial posts.
I like the notification options, I can still get e-mail pushed to my phone on topics I'm following as with D-list.
There's a bug preventing changing account settings (false incorrect password error) and that means I can't hide my e-mail address or prevent users e-mailing me which is pretty bad (don't know if that is related to e-mail addresses appearing rather than nicknames on posts) but I guess it'll be fixed soon.
All in all pretty cool.