Great clean room with plenty of glasses/dishware. There is only one bathroom, so if you have 7-8 people like we did that may be troublesome. Other than that, it was a great location, very reasonably priced if you fill the room, and clean.
If you stay in Derby Tower (or possibly others) you can cut across the pool on the second floor to the elevators and minimize your time outside getting to the Cosmopolitan. It was really nice to be able to use the pool/hot tub on the rooftop 14th floor of the Cosmopolitan!
The beds are a little small (specifically short, and that's coming from someone who is 5' 7") but comfortable enough other than that. And let's be honest, most people could fall asleep on top of a stop sign during a Vegas trip anyway by the time they make it to bed! We had some tall people in our group and I didn't hear any complaints about the beds but I did notice they seemed short.
We didn't have any complaints about noise and nobody complained about noise coming from our room. We weren't super rowdy or anything but we definitely made some noise at times with 7 guys on a guy's trip.
TLDR: Clean room, plenty of beds, great location, minimal noise, easy Cosmopolitan access, would recommend.