This place is A-OK, especially for drunken hungries. This place is "hidden" inside Cosmo but it's pretty obvious when people are constantly walking in and out some hallway with slices of boxes of pizza.
The decor is pretty cool and there's a pinball machine in the corner. The seating is pretty limited but none of that matters because you're here for one and one thing only, their pizza. It's pretty good pizza, NY style thin crust that's reasonably large. It's quite expensive (like most things in vegas, also you're in Cosmo) for each slice and a whole pie. I've done it both ways multiple times and just get what you need. If you're going to feed a large group and can agree on flavors, just spring for the whole pizza instead of getting slice by slice which will definitely be more expensive.
The reason why it's only 3 stars because it's A-OK for what it's supposed to be, quick pizza. One star is off for the price, and the other because of the RIDICULOUS wait sometimes. I've had them quote 2.5 hours for a whole pie, or you're waiting for like 30 minutes in line in heels after clubbing for pizza because surprise! everyone is drunk and hungry and need carbs ASAP just like you and had the same bright idea. My advice, plan ahead and better.