I've tried it, it was amazing. However I didn't try it for weight lose, just because i'd read so much about it and it's so good for you. I go every 6 months now, bit like having a dental check up. Use the below link for a list of recognised therapists.

I have done it twice and it cleared up my bloated stomach. I did it for eight days and during that time I learned a lot about food and diet. I lost about five kilos and it didn't come back on because I was more aware of what I was eating and had more energy. Two years ago, I took my 68 year old mother there. Everyone was worried about the possibility of it being 'a big shock to the system'. The process was uncomfortable, but she lost 8 kilos, and continued to loose weight after, again, because it helped her change her eating habits. She was elated as she had not been under the 70 kilo mark for over 20 years.
For the first four days, you feel groggy, irritable, no energy, and you become really smelly! Then, something happens, you start to think clearly, become more energetic and yes, the armpit problem dissappears, too. Your skin looks better, and I can tell you, my friends who have done the same, come back glowing. The first time gave me the best results - but it is not about loosing weight, it's about detoxifying, learning about lifestyle and eating habits.
Good luck
maz