Just upgraded. I do like this IDE. The gadgets are actually helpful and its fairly easy to set up a complex project quickly. Even setting up something to run JBoss under the debugger was pretty easy.
The new version improves the look and responsiveness of the UI a lot. I think a lot of the shit in Java is worthless boilerplate and a more succinct language would do away with a lot of that. But given that Java needs it, IDEA does a nice job of automating a lot of annoying boilerplate with a couple keystrokes.
If you gotta do Java, IDEA makes it a whole lot less annoying. (As opposed to JBuilderX - which I find makes it a lot MORE annoying).