We arrived on Friday 5/10 the room we were given was on the 68th floor and we were excited to check it out. Upon arrival we noticed that this room had very filthy and worn out carpets. stains and spots everywhere. Well we didn't complain much initially as that was the only thing seems saw out of ordinary. On our second day of stay we went to the desert and we left early in the morning . Once we came back at 3:30 pm the housekeeping was not done yet. We wanted to take bath and we had no clean towels. we called the front desk and complained they brought some towels and apologized. On the 3rd day I found a very dirty and soiled towel in the bathroom folded as a clean towel. It was really nasty and I have taken pictures of it. I called the front desk again and reported the issue. On my last day of stay which was Sunday I was told I could get into the Marquee pool for free since i was a hotel guest. At the door the bouncer wanted $20 to let me in. I went to the boulevard pool and my God was this pool not filthy! All type of objects were floating in the water and there was a way too much chlorine in the water that I could not even breath. Well this tells me that the water rarely gets replaced and in order to keep it from molding, they have to add a huge amount of chlorine to it. As a final surprise the housekeeper walked in on us as we were packing for our check out. While I had told the front desk exactly when I would check out, this is not communicated to the housekeepers.\nIt felt like we had a 2 star hotel room but paid a 5 star price for it. This  was my worst Vegas experience and will not be back to Cosmopolitan again.