You mean the "Quietime"? It's fantastic. I just got out of it a few minutes ago. I'm doing 50 minutes so I can get really sweaty.
I feel so de-toxed afterwards. That EBay seller is great, isn't he? I shopped around for quite awhile until I found him. I'm glad I got the big one, I have no idea how the smaller one would be, but I think it'd be too small for me.
I read somewhere that if you spray yourself first with H202, it becomes a fantastic way to oxygenate while you are heating up. I haven't tried it yet. I have some food grade H202 and think I'll try it soon. I've also rubbed castor oil in various places, and I think this is a very efficient way to get it into your system too.
I've had it for a month and my skin looks great, and I feel great too. Just lost 42 pounds, and am going for 20 more. (Note: Not from the sauna in case anyone was wondering)
Been playing around with an essential oil nebulizer too. It is also doing interesting things to my environment.