I honestly waffled on the rating for the spa. The massage itself easily deserved a 5 or even a 6, if such a thing existed. It's probably the best massage I've ever gotten in Vegas.
The spa itself was maybe a 2 or a 3, so I ended up just giving the whole experience a 4.
There's a co-ed section here that consists of a giant pool/hot tub with really powerful jets and little daybeds on the side that have curtains that can close. It was nice when my wife and I went there and relatively relaxing.
On the men's side of the spa I have to say I wasn't too impressed. The sauna/hot steam room was nice but other than that the only amenity was a smaller version of the hot tub that was in the co-ed area. And it was in a very dark little room off to the side next to the toilets. They had 3 showers in there and 2 were just normal showers and the 3rd was one of those with 5 jets but the main waterfall jet over your head didn't work.
It was also not very relaxing. At least half the time I was in there the spa attendant and one of the other guys who was wandering around - literally - just naked with everything flapping in the breeze were both yelling and screaming and laughing with each other. It was very loud and annoying.
We also ended up having to fight at the front desk when we checked out because the spa charged the wrong amount to our room. And then when they tried to justify it they couldn't find any reason why they'd charged us the wrong amount (we had a receipt for the right $$). Ultimately it worked out, but still annoying.