I tried it once (back when Groupon was a thing), at a discount. It was ok, but nothing special. I mean not that different from lying in a bath or a bed in darkened quiet room, really not that much difference for me.<p>Also, if you go, I recommend you take some kind of floating neck support (or ask for one at the place where you are going) because towards the end, I could feel my neck starting to hurt (and I don&#x27;t have a problem with my neck, it&#x27;s just 1 hour is a long time).