| I haven't been involved in many MMO launches, but I can definately say it has been an incredibly smooth ride the last couple days. Also, the improvements made from the Beta client are a remarkable improvement (very sensitive to all the feedback that was given). It bodes well for the future of the game!
Besides all that...it is ridiculously awesome to play. Group world PvP has been a blast as we've been attempting to move in packs as a guild. Please join us if you are at all interested and feel like your comp specs are up to date.
@ feday - Doesn't run native on the mac but I used Bootcamp for the beta client on my imac. It wasn't exactly smooth, but it was playable. And, I'm sure its performance would be even smoother given the polish of the live client. I say if you've got Bootcamp up and running on one of the dual core imacs (with at least 2gb of ram) give it a shot. I'm sure you won't be disappointed. | 
