I didn't stay at the Cosmo but I dropped enough money to from the boutiques and casino. The Hotel is beautiful, the shopping is great (they have a Kidrobot store!) and I love that there's a secret pizza joint open until the wee hours. I agree with some of the previous reviews about the casino not being smokey and it actually always smelled great here for some reason. It's like there's a person who's sole job is walk around and spray fabulous cologne throughout the hotel. I am definitely planning on staying here the next time I'm in Vegas, the location is great (close to the Bellagio).