I haven't really been able to try out all of the new stuff, but I logged on a couple of times to see what was it like and I was pleasantly surprised on the changes.
However yesterday I read here that the jp forum is full of people hating on the patch, and this morning yoshi goes and post something that seemed a lot like an apology for the update.

I saw a few people on the english forums diss this patch but I never quite see them raise an actual complaint. So I was wondering what are the issues people are having with this patch.