Aside from Best Buy not getting their CE Preorders in on time (thank god for Gamestop ordering extra CE's...), I can't complain at all. Registration was fine, albeit ClickAndBuy was a little cumbersome. Installation went extremely smooth, update was done in under 30 minutes. Registered some codes, made my character, logged in without a hitch and played with no issues.
As a matter of fact, I was talking to my wife and she was asking how it was compared to OB and I told her I absolutely have every intention of neglecting our marriage.
Until she starts playing in about a month...at which point she'll just nag me for gil & help in game instead of RL...
All in all, pretty smooth, IMHO.