The twitchy finger brigade looking for a quick shooter with a linear plot and no thinking required should look away now (or keep playing COD in all its forms).
Obsidian have finally redeemed themselves after the disappointing Knights of the Old Republic 2 by creating a new gaming world in the rebooted fallout franchise, using the existing F3 game engine.
Yes, there were many bugs in F3 that caused the PS3 to crash or the occasional Super Mutant Behemouth to stand 20 feet in the air, and I am sure FNV has just as many (six hours in and I haven't noticed any yet though).
If you are looking for a game that offers more than a normal linear gameplay of FPS games, more depth and character creation then Red Dead and a world that REALLY reacts to your actions (good and bad) then this is the game for you.
The graphics quality may not match up to Red Dead or MW2, but the gameplay far exceeds them.
Forget about the Iron Sites, stick with the VATS system, it's what makes this RPG a bit different from the rest in terms of the game engine and reminds you that this in an RPG and not a FPS.
Prepare to lose many hours or days of your life playing this - it may be frivilous, but very rewarding.
As for the linear players amongst you? Play Bad Company 2 - the thinking man's FPS!