I played the ME3 demo yesterday, I went with the RPG game setting, combat felt solid and fairly similar to how it felt in 2, I like how the Vanguard has an ability that can be comboed with the charge, feels great to charge in then do a ground pound that messes up everything around you. It seems interesting that now skills at around 3-4 points have two choices for each point you spend like the final upgrade in ME2, so that will be interesting in customizing your characters. I still can't really imagine the multiplayer in ME3 being something I will ever play though, haha.