It's nice, but I'd rather they fix the large Statue of Liberty sized pile of bugs and balance all of the useless/broken weapons before they start adding stuff that won't affect me and a large group of players with no interest in CS:GO style matchmaking and ego enlarging ranking. I'd rather the TF team start fixing the myriad of things that are inconsistent, broken, etc instead of adding another feature that they'll cast aside, forget about, and neglect any support for (remember arena mode, the beta maps, tf2 Beta as a whole, replays, etc, all things that got really hyped up and now are forgotten about by not only the TF team, but many players due to being supremely inconsequential?)
My opinion: meh/indifference, hyped only for what else this supposed update might bring along with it that actively affects my game as a whole.