Well....I don't even know where to start. From start to finish this had to be the worst experience I have ever had at a spa. I love trying new spas in Vegas and got an offer from Groupon for the O Spa. I was so excited to get a deal and try somewhere new. From the time I made the appointment until I left I felt as if I was a bother to the entire staff, not to mention the spa is very small and old. The receptionist was very rude and texting as I was trying to speak with her, she didn't even lift her head. There were three chairs in the waiting area but abuot 10 sinks in a huge area across from the waiting area which were not even being utilized...wth??? They did not have any other slipper size but L (I'm a size 7 and a L is about a 10) so I had to wear my own, which got ruined by the massage oil. The attendant was rude and MIA for most my stay. As I was waiting in the little cove for my service I had a conversation with another lady who had a similar experience. After it all was said and done, I hunted the attendant down and asked for the manager. She too was not pleasant to deal with. I felt as if she did not even care about what I was telling her. She made no attempt to rectify the issue or to make me feel like they valued my patronage. I would not recommened this spa to a dog even if he had a coupon. On the other hand, I had a great massage with excellent service at Qua Spa over in Ceasers Palace.