I decided to take the plunge and booked a massage with JavitsTouch. As his name indicates, he is located across from the Javits Center so take that into account when you're calculating travel time. He works out of his apartment in a nice, modern building with a doorman; you'll need to be announced. His apartment was slightly cluttered, but not dirty or off-putting. I booked a 60-minute deep tissue massage, which he performed on a wide, comfortable table with face cradle.
He gave a B- massage: good, not stellar. He provided a nice, deep pressure and found a few troublesome knots which he diligently worked at. I don't think he is professionally-trained or certified, but he has a general understanding of the body and how to provide a pleasurable, relaxing experience. He used unscented oil and was thorough in addressing all areas of my body, checking in occasionally to make sure everything was ok. On this first experience, he was very generous with his time and went approximately 15 minutes over the 60 minutes I had booked. MT/HE
His manner was calm and quiet: not overtly friendly, but not cold. A good option for a relaxing, reasonably-priced massage from a mature man - worth a repeat.