I own a 360, and it is crap. Has to send the first one to Microsoft to fix the RROD, and now the replacement they sent me does the same shit. It will work fine for 15 minutes on a cold start, but then it starts lagging, freezing, etc., which eventually turns in to an E74 error. If I am playing a game and want to put a new one in, i get E74 error and have to turn the system off for about 10 minutes for it to work again. Consoles suck dick for FPS games.
Tl;dr? Save your money.
Tl;dr? Save your money.