Search has been massively improved.
That alone makes the change worth it and for me at least this one runs as smooth as silk. I likes it.
Yeah, I can understand people not liking the new look - there are always lots of people who don't like the new look when they update the forums, but in my personal opinion the new features make it worthwhile.
Oh yeah search is a lot better. The only thing that would make it better still would be if there was no 60 seconds flood control when you search something but not a single hit was found (when you make a typo).
Or just no flood control for searching full stop. Seriously, does it serve any real purpose? Other than annoying people when they can't find what they're looking for first time? Would probably cut down on a lot of unnecessary new threads being created.
Flood Control is there to minimize the load on the servers. This isn't just important for busy periods but it also limits the ability to preform DOS attacks by spamming the search function. It would be fairly easy for someone to make a script which sends hundreds of search requests a second in order to overload the servers if there was no flood control.