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I used to attend their FREE boot camps on Saturday and Sunday mornings because I wanted to get in shape and meet people. Let me tell you I was NOT fit, and the workouts killed me (figuratively)! But oddly, I completed the boot camps every time I went and felt motivated to come back and get killed the next day. I am not sure why, but I am guessing it has to do with the great coaches and friendly people that kept me going.
Now, I am not completely contributing my successes in London to The Transformers--it was a combination of better food, more walking than driving, and being busy--but I can definitely say The Transformers had a hand in my 20 lbs/9 kg/1.4 stone weight loss during those 6 months.
Unfortunately, my stay in London was short and I was unable to get a proper membership with The Transformers. I am sure if I did, I would be even more successful now. Nonetheless, I recommend those in the central London area check out their FREE early morning weekend boot camps and YouTube channel.
And for those of us too far away from London and obviously doomed for life--DON'T LOOSE HOPE! Try to find a similar fitness organization in your area. I found The Transformers on MeetUp (URL: http://www.meetup.com) which is a great site for finding people in your area doing cool and fun things.