I have been so spoiled. Let me preface this by saying the only reason I could afford to stay here was scoring a killer deal with Marriott's "Look no further gurantee". It ended up being cheaper than the Monte Carlo.
Fom the moment I checked in until I got in the cab to go home, the service here was impeccable. Every single staff member was incredibly nice. The hotel is gorgeous, had everything I needed for amenities, and the shops & restaurants are very well curated to serve upscale but younger clientele. I think it's a good fit for the post-college, young professional, not-The Hangover-wannabe crowd. (of course, the nightclub & pool party kids are a difference scene. I wouldn't judge the hotel based on that.) I could've stayed in the resort the entire time and would've been perfectly happy.
You can find tons of information about the cool rooms, so I won't get into that. But everyone mentions the peek-a-boo shower and forgets to add that there are optional blinds to cover it up. I want to point that out just in case you are going with friends and are nervous about that. My room was on the "57th" floor (does this hotel really have 75 stories?) and I didn't have any problems with the elevator that other people mentioned.
Everything was perfect. Quick tips: 1) Use the Marriott "Look No Further" guarantee if you can. 2) Sign up for the Identity membership because for every $100 you spend in the hotel, you earn $5 back. Plus there are sign-up bonuses. I got a $15 zappos gc!