The MM downtime has given me a chance to play a LOT of campaign, co-op and solo, and I feel like I've gotten my money's worth just from that. The one night of customs we pulled off was a ton of fun, and knowing that customs, matchmaking, and everything else will be fixed at some point is just sweet, sweet icing on the cake. I know not everyone probably enjoys campaign as much as I do, but to those trying vainly to search for another match, or getting frustrated at parties not working, or getting ready to sell their game, etc., I would just say: there will be literally YEARS to play all the Halo matchmaking you could ever want. Use your time now to play campaign or play another game or whatever, because I guarantee you that the siren song of Halo 2 Matchmaking will call you back (once it is up and running).