Life After 2.5 Wordpress Upgrade

Early last week we moved shoemoney.com from a shared (within our system) server to its own box. It was getting a bit overloaded on the old one. This blog has always kind of been just stuck somewhere with many other sites we have but its grown to the point it needs its own dedicated box. So now its on one. Once it was moved I upgraded wordpress to 2.5. Really easy upgrade no broken plugins or anything. As I said in a earlier post I was planning on redoing the comments so people had to register with the site and also taking away the threaded comments. I love brians threaded comments but when posts get over like 150-200 comments it has some issues. I think they are mostly client side browser issues but anyway my plan was to do away with it. After the upgrade I did these things and it was about 2 minutes until someone made a comment I wanted to reply to... So it did not take long to re-enable brians threaded comments only this time I talked to dillsmack to see how hard it would be to remove the overhead I did not use and also enable Gravatar support. Dave h4xed out the collapse option and also moved the javascript to a external file. I enabled Gravatars... cool thats how I wanted it. I will work on formating a bit more but I can really tell a difference in speed on larger comment posts (150+). I also canned the idea of having people register to comment... maybe someday. Btw if you have a default profile icon might want to get a Gravatar. Its linked through your email. I think it also ads a lot more authenticity to users commenting. So overall impressions of 2.5... It took me a bit to get used to it. I was not so hot on the new admin navigation at first but I am liking it now. I wish the comment tab would default to show the ones awaiting moderation but its not that big of deal. Categories are more of a pain.. I used to like the old option of typing in. I guess I should start using tags instead of categories for most things. I have way to many categories. Anyway I know a ton of Wordpress users use this site. Whats your impressions of 2.5?