I was just playing it a few minutes ago actually. Personally I find it to be improved in almost every aspect compared to fallout 3. The atmosphere is a bit lighter in general and it's seriously easy (or at least I find it to be quite easy even on very hard) but it's really fun and it has really good replay value. I don't have any DLC and I've racked up 90 hours and I'm still playing. As for the bugs, apart from some NPCs occasionally clipping into the terrain hilariously and the game spontaeneously crashing there isn't much to worry about. The old bug that would regress saves back a few hours is gone and while sometimes stuff will happen that really shouldn't, they're usually harmless and pretty funny. If you enjoyed Fallout 3 then you will enjoy new vegas.
Plus, nobody has plot armour. YAY!
Plus, nobody has plot armour. YAY!