I've been to Vegas many times and tried many a buffet and this is still my favorite.
Obviously the entrees aren't going to be the same quality as if you went to a restaurant and ordered a single entree. If that is what you're looking for, then you shouldn't be considering a buffet at all.
I absolutely LOVE this buffet because I am really into middle eastern food (hummus, etc.) but what really makes it for me is the bottomless mimosa (I believe on weekends only). People complain about the price, but drink enough mimosas and you can come out way ahead.
My friends and I always have a great time here; there is something for everyone and for a buffet, the food is pretty damn good.
On an infamous Vegas trip, we got so sloshed from the mimosas here that one of my friend was actually cut off. Hilarious!