I've been a couple of times for a facial and while the treatment was good the spa was a bit pokey.
The 'relaxation space' is a couple of beds behind a curtain off the hallway and every time I was there the AC was on full blast to the point it was actually perishing cold.
Personally I'd go back for a specific treatment but not for a relaxing spa day.
FFx
I've been before and really liked it. Best facial ever. I went when they were still renovating so it was in the hotel. I haven't been since the spa itself reopened.