Fallout: New Vegas is pretty fun when it's not breaking down on you. Problem is, that happens a lot. Hopefully a "comprehensive" patch due for PC, Xbox 360 and PS3 in the "coming weeks" will fix that.
While there's sadly no firmer timeframe on when to expect what for many will be a game-saving remedy, we do know the 360 version's save game issue should be fixed, "along with a number of other issues being reported".
In the meantime, PC users on NVIDIA hardware like myself suffering from crummy performance in many areas will be getting a separate patch in the next day or two that fixes not just that problem but more save game issues and companion AI problems as well.
It's a shame when you have to get excited over patches, but with this game's engine - which marries the deep technical lows with giddying exploratory highs - it's par for the course.
More news on New Vegas updates [Bethesda]