I've been playing Halo since the very first. I've enjoyed the ride of Bungie's Halo as much as anyone else, and I've been playing Bungie matchmaking since the fantastic LAN parties of Halo: CE. That being said, I'm absolutely stoked about 343's new take on Halo gameplay
I feel like if Halo just kept going down the road that it was going, it'd just end up petering out and/or get stale. I love the fact that it is fast paced and slightly more modern (if that makes sense).
I haven't been this excited about multiplayer of any kind since Halo 3! I love that 343 decided to make Halo 4 their own game and to take their own path. It's what needed to happen, and I can't wait to have them keep going!