Visited the spa a couple of times during my stay at the Cosmopolitan. The spa is very nice, but I was expecting a lot more based on the raving reviews. Don't get me wrong, I totally enjoyed the spa and the staff were very pleasant and professional, but far from the best spa ever. This coming from a gal who only gets spa treatments when on vacation. Just wanted to put it in perspective...
My treatments included a mani, pedi and massage (can't recall the actual name). The lady who did my mani and pedi was terrific. They use a vegan polish. She was focused and totally whipped my hands and feet into glowing shape! My massage was also fantastic, I am pretty sure my back lengthened and straigthened after that treatment. Of course each spa spa visit included a sweat session in the steam room, soak in jacuzzi and some time lounging around (lots of gossip mags available) enjoying snacks and hydrating. Left relaxed and refreshed.