Finally got to play this game today, and I have to say, first impressions are extremely encouraging.
Visually it looks very similar to the original, though the effects are absolutely amazing, especially with the PhysX settings on high. Insane numbers of particles, and generally awesome flames, explosions, including blood, acid, and other gel like liquids that react to geometry, flow downhill, and even move when you walk through them.
The humor and general ridiculousness is quite good so far, my favorite character so far being Sir Hammerlock.
I can't wait to play more! Anyone else bought and or played this game yet?