I'm not a big fan of the COSMO.  Marquee may be the place to be, however, everything else there is mediocre.  For example, while playing craps, I rolled a nine.  One dealer put the point on the nine, while, the other dealer put the point on the five.  So my friend and I informed the moron that the point was on nine.  After waiting three minutes to confirm, they let me roll.  Sadly, to say, I rolled a seven.  The sportsbook isn't that great.  The room is nice, but, I do not like the fact that I have to use my keycard to access going up the floors.  Sometimes, the key reader does not work.  In conclusion, I would never stay at the COSMO.  I'd prefer the MGM properties over the COSMO.