Just downloaded it, gonna update my test site in a min to see how the upgrader works, then will junk my test site and do a fresh install to test out the importer again to see if it will import y users this time
I've waited 30 minutes to see if any major unforeseen bugs came up - they haven't so far.
Backed up my data, put the site behind .htaccess and run the upgrade.
Made a new default style and re-applied the few template changes I had.
And made sure the favicon / header logo and .htaccess is how I want it.
As a security measure I've also changed my account password, never hurts to cycle.