I LOVED my massage! I booked a last minute birthday deep tissue massage, and chose Oasis in part because of the many good reviews. I went to the location on Park Avenue. The entrance is a bit jarring because it's in the lobby of an office building, and you have to push the door really hard to get in!
However, walk down a few steps, and you really are transported completely away from the city. The photos on the site honestly do not do it justice. The entrance is beautiful, the staff is very nice, and I loved the peaceful waiting area complete with water and tea which was frequently restocked, and the massage was awesome, and it was really quiet.
The only reason I didn't give 5 starts is because the changing room/bathroom could be a little more spa feeling. It does have a small sauna (yippeee!) just felt a little lacking in decor somehow.
I will DEFINITELY be coming back here!