Yeah - I've started playing it a bit more now, and it is growing on me. I do like the new button layout for the bumpers/triggers:
LB: Class Type Power
Also, I really like the new 'non veto' aspect of the play type selection - however everybody seems to pick either slayer or flag collection levels - I've yet to play odd-ball or the other one that pops up. Whats happened to Invasion - or is this coming out later this week?
Had an odd one last night as well - exited to dash, and it black screened, then the guide blades came up, and the console froze. Rebbot fixed, but must have been a Live issue.
I too like using the stealth class - that combined with a shotgun = teh win.
The assault character is pretty good on flag capture levels - if you're defending, and there's a load of opposition coming at you, go into armour lock, come out of it and watch your enemies shield sdissaper - then melee frenzy