Eric, I agree to an extent. I'm glad they listen to their customers and decided to put it up. However, it seems like they were not ready, and this was very rushed. Come on.... 24-36 hours downtime and an hour of instability and tons of errors is completely unacceptable. If I was relaunching a site and did that, I'd lose the contract and probably the client.... and yes, I have had to work with sites larger and busier than vBulletin.com, so that's not the issue here. They did not thoroughly test the site enough on their own environment. Sure, it's not the product's fault, but it's still very alarming because it's the same team.
The new style looks more like phpBB. I'm re-iterating a post of mine on vBulletin.com a little, and I apologize. There's not enough contrast... not enough attention drawn to key areas, and the new icons are terrible. It looks very amateurish, and I don't want to admit that because I'm a huge vBulletin fan.
I think the new style is a major step back visually. I'm excited to be able to modify it easier, though... so it's a bitter sweet moment. I was really looking forward to the screenshots from Kier because they captured the visual aspects of vBulletin 3 that I really liked, and also improved them to be more modern.
Honestly, I think if this was a random style released on vBulletin.org it wouldn't get much attention... I've seen better free ones.