Service is great! I don't really care for the atmosphere because I prefer quieter, more relaxed places, but to get the party started at Marquee, this is perfect.
It is very expensive, but I would expect that on the strip, and especially at Cosmo. The food you get, while small quantities, is delicious and the presentation is beautiful. I sat in the middle area one time and watched them pick out garnishes very precisely with tweezers. The dessert seems very interesting- I've only had the hazelnut something /salted caramel dish and it was divine. But I'm curious about the other desserts!
We've had the same server 3 times, and she's fantastic, I wish I'd caught her name. The drinks have all been perfect. I love the mojito, and there's another drink I just tried but I forget the name- it had cucumber water, and a berry type floater. It was delicious!