Don't know if reviving an old post is wrong, but:
Went to Serenity Spa on 6th St. I have walked by the place 100s of times and never saw anyone come out.
Forewarning, I am not a veteran of this stuff, and all my limited experience was in Manhattahn.
Anyway, its front door straight to room or table shower. In NY, the places I had been to had an elevator and two doors to go through, giving you time in the event of a raid.
The woman who answered the door seemed to be the only person there. Korean, I would guess over 50, good looking for 50....She was wearing a cocktail dress, spoke almost no English, and offered me a table shower immeditaely.
Anyway, it was $60 to the house. The massage was superficial, but not terrible, I never initiated anything and there was obvious opportunities to initiate. I am not sure what the menu would be, but there is definitely on.
Hope that helps.