Sensory Deprivation Tank experience?

Is there anyone here who has used a sensory deprivation tank? I was thinking it might be a potentially great experience for me, due to the rib injury I have. Even the idea of weightlessness gets me excited, because my rib hasn’t felt normal for even a day, in at least three years.

I’m also pretty darn depressed right now but I’m having massive reservations about seeing a therapist (I know it can be very beneficial, please, no lectures), and I thought that a sensory deprivation tank might be calming and at least somewhat therapeutic.

So, if anyone here has experience in this area, I would love to hear what you have to say.