Aside from the performance issues reports (which I haven't had personally) this was an incredibly good patch. Most of the complaints are either about the performance issues or people having to adjust to new mechanics.
For the most part that's true, but there's some funny stuff going on, particularly with tag changes, and one or two other things. There are remarkably complex systems in this game - and I imagine a lot of issues may have been diagnosed in beta, but the fixes are still in progress. That's OK, sometimes it takes time to get something working 100 percent.