I just installed the new version of WordPress and I'm not impressed. The stuff I had issue with still aren't fixed and the things that I wanted to see haven't been added.
First, adding an image to a post is still a crapshoot. Right now I can't add an image from the that lightbox interface. It goes white, it stalls and does nothing. So that's still an issue, at least for me.
Second, I wanted to see a list of previously used tags and be able to just click on any of them to add them as tags to a post, but I can't do that and I think that's a stupid no-brainer addition WordPress should make.
In the end, it's a cute upgrade but I'm not impressed.