I bought this game last Saturday, and have been disappointed with the game play I've experienced. There are so many glitches and so much lagg in this game it just completely ruins the game. I can't go to certain areas without 'losing' my companions, I can't even finish a quest because I gave the platinum chip to Mr. House and he tells me to open the bunker, which I need the platinum chip to do and he wont give it to me. You had 2 years to make this game, and it was a complete blowout. Fallout 3 was a great game, but this is just disappointing.
See, to me it's more the opposite.
New Vegas adds content and style that I sorely missed in Fallout 3.
The game is buggy, it crashes and companions have pathing problems, no argument. Then again, the same problems were in Oblivion and Fallout 3. What do all games have in common? The underlying game engine.
Here's to hoping Bethesda will make a very careful consideration what to use for the open world games in their catalogue and crack down these issues. And maybe add some ladders to the next game. Just saying...