I upgraded to .9 about an hour after it was released. Sadly, I rolled back to .8 about 4 hours after upgrading to .9 after realising that .9 was probably rushed to get it out less than a week later than anticipated, so it was still quite buggy. There were still bugs nominated to block its release, for crying out loud, why did they release it?
This is probably the first Moz release that I've actually felt disappointed with.