First of all, this place is not affiliated with Hilton as the name misleadingly implies. Second of all, there is nothing special about this place. I went there for a mani/pedi that I purchased through Groupon and I would have got a much better mani/pedi at any of countless nail shops in this city. There was barely any massage done and the whole experience was surprisingly quick for a "spa". Again, the mani/pedi I got was basic at best.
More importantly to note is that my toe was cut during the pedi! The nail tech cut me while doing my cuticles and didn't even bother to mention it to me. I looked down when I started experiencing pain and saw her dabbing at the blood with a towel. And I can't be sure but it appears that the same tool she cut me with was thrown back in her box of nail tools.