Whe i first started Dead Money, my first thoughts were that it was going to be very buggy, place holders missing etc. But after completing my playthrough last night, i can safely say i did not experience a single bug, which is very good xD. The story in this DLC is outstanding, the way the story is laid out, the characters, all amazing. For me, this has been the best DLC i have ever purchased, and it is definitely worth the buy.

I had one crash, pretty far in, made the screen go all wierd. For a second I thought it was my tv that had gone.
Other than that the only bug I encountered was having God get himself stuck in the floor once, making him warp back to the fountain fixed that though.

i had one freeze when you...get to the end. to many gun shots and lazers. screen froze

Oh yeah that happened to me just now :/ can't blame it too much though, to much stuff happening at once

Closest I got to a glitch was some of the random paper/junk on the floor flickering a bit - overall I think it was great (didn't beat Point Lookout on F:3 for me, but I'm sure there will be other DLCs to come ).