I own one and use it since 6 months almost everyday. Far north sauna. Your right it's great. I feel good after but I question sauna effectiveness to get rid of metal by itself. I think effective chelators is a must. I am feeling and less toxic after intensive use of sauna. Great for die-off. My first experiences were difficult tough. It takes a while before you stop feeling almost dead after using it. I think it is some detox reaction.
Jorge, do you have issue with chemical sensitivities? It's one of my main issue that I was confusing with candida. I red a lot on Cutler and S.Rogers and both of them link candida with chemical sensitivities and high toxicity, notably with heavy metals. Even Z.Rona talks about that connexion in his book.