I like it!
It's pretty much like the first one, PLUS:
1) physics -- am I wrong or is MP2 the first game that has physics of this level?
For example you can wait for a bad guy to come close to a door (while standing on the other side) and then open (or close) the door to knock him down -- he'll be harmless for a few seconds so you can kill him easily.
2) lots of neutral NPC's. There are a lot of interactions with NPCs (compared to the previous game). Sometimes they join you to fight the bad guys.
I miss the Kung Fu mod.
And surprisingly: it runs very smoothly on My Duron 700 (with Radeon 7200). A lot of recent games run like crap. I have some things turned off of course. Most settings are at the medium detail level.
I haven't tried turning on advanced ragdoll physics so if the bodies fly around they seem a little stiff
, but that's no big problem.