Wow, I do not think Matchmaking is any better then it was pre-patch. I got to play three games before giving up. It constantly gets stuck at either "Players Found..." or "Connecting Session..." and just sits there infinitely. If you let it sit there for a while, chances are you're going to get a message telling you that you couldn't connect to the Host. Also, when you go back into the lobby after a match, sometimes the "Next Match In" timer just freezes indefinitely.
Are they seriously going to have to patch the patch? And when are dedicated servers going online? I mean, the matches I played were pretty smooth, aside from a couple of instances in my third match that were questionable (and the fact that Halo Waypoint doesn't have a record of my 1st or 3rd match). But after my third match, when everyone backed out it did Host Migration.