Classic is ok fun, it's not a replacement for those wanting that classic feeling though. I still feel MLG has the best settings. Some of the maps in classic have some serious scale issues, Lockout in particular makes me motion sick because I feel like I'm going way too fast. :|
Grenades are out of control, couldn't count the times tonight where I was behind cover, but the grenade would still kill me, lol. Overall, it's a fun diversion, but being Slayer only atm, I don't see myself playing much of it unless my party dictates it.
Throw some Multi Flag, Assault, and 1 Flag in there, then it might become my favorite playlist.