I can sometimes get stuck on scenery, ending up on top of say a pile of crates or a stack of tyres unable to get back down. A strange one I had not 20 minutes ago that I was unable to turn around, instead the camera moved around Shepard with the mouse while he was still facing the same direction, quick save and load sorted that one out. Some graphical glitches over dialogue but still readable. Lag from Shepard's spoken lines.
Think those are the only bugs I've had.
Funny though it hasn't crashed once, now that IS surprising considering I have it on the PC.