Overall

As addictive to play as Fallout 3, but the crafting system isn’t anywhere near as good. The world is a lot more interesting with different factions and reputation systems for each. The plot is… different, but interesting. If you like Fallout 3 you’ll enjoy playing New Vegas as much as I am.

Annoying

Fallout: New Vegas engine = Fallout 3 engine = Oblivion engine etc… Walking in third person looks like gliding, when you load a save bodies (enemies you’ve killed) levitate and drop. There’s a weird animation glitch on the third person controller where its legs hike on when loading into a new zone. Game stutters when roaming terrains.

tl;dr Bugs that break the sense of immersion.

edit: I haven’t played all the way through the game yet; I’m about 20hrs in.