If you're a fan of the W Hotels and its style, you will love the Cosmo even more. The rooms here are great, spacious and trendy. This is definitely the place to be in Vegas whether you stay, dine, have some drinks or dance the night away. The Cosmo IS NOT part of the City Center (MGM Resorts) property even though it looks similar in style. It is affiliated to Marriott. BEWARE: If you have a room on the Eastside Tower facing the pool area and The Marquee, the music can get pretty loud especially if Kaskade is in town playing. You probably wont get any sleep until 4AM when the club closes down. Make sure to get a room not facing the pool area.