I stayed at the Cosmopolitan while I was in Vegas for the SEMA convention. I was definitely impressed when I walked it. It felt like a nightclub- dark, with crazy lighting, hip, and modern. However, after a couple of days, it started to get old and overwhelming. I'm the type of person who likes bright lighting and space (i.e. the Bellagio). The fact that this hotel was built as a skinny, vertical building next to the Bellagio made the hallways appear very narrow. Don't get me wrong, the hotel is nice, and the rooms were very futuristic (you can control the lighting of the room by pressing a simple button on the phone) with awesome views facing the Strip and Bellagio Fountains (which was gorgeous at night), but I wouldn't go back. Been there, done that.