If you plan on getting flat out drunk each night you stay in Vegas do I have the place for you. SLS will get you checked into your room in no time, and when you attempt to get to your room the bouncer at the front of the elevators will make sure you have your room key so you will waste no time trying to find it when you get up to floor. When you finally get to your room don't worry about being too loud. Everyone around you is drunk too and I did not see a single child during my stay here.
However, if you are a light sleeper or don't plan on getting fall down drunk I would highly recommend avoiding this hotel. The front desk is unfriendly and unwelcoming but none the less quick. They give you your keys and neglect to share any other information. Each and every time you want to go back to your room you must fish your room key out and show it to the bouncer. Who besides does not smile has no clue where anything is in the hotel if you ask him. For example I asked 4 different employees where the fitness room is ( and no it is not on the directory map near check in).
The walls too as others have mentioned are paper thin. I have never stayed in a hotel where you can clearly hear and understand what the others rooms are saying. Also don't go near the mini bar. The food is kept in a pressure sensitive tray. If you remove an item to look at it to find the price you will be charged for it.
The TV is where you find the room service menu and other key info on your stay. No one will mention that to you.
The fitness center is clean and well kept. Downside you must find it and they are only open for a short portion of the day.
The hotel is clean and the smell of cigarettes is less overwhelming than other hotels on the strip.