That stuff has been around a long time. Some friends of mine did it back in the 1970's! They actually drove 180 miles bi weekly for it! ROFLMAO!
You could do it at home with a whole lot of Saran Wrap!
Yes it will work if you need an emergency fit into a dress or whatever day, but that's it!
Otherwise, you're just paying someone to wrap you in plastic and make you sweat. You can do that at home, plastic wrap from the dollar store!
You're better off to find a nice lifestyle change food/nutrition wise, for loss and maintaining, and find whatever exercise program suits you for fitness.
3+ year maintainer.
The human body is capable of amazing things! But without the mind, it is nothing. Get your mind in gear and the body will follow!
Be selfish about caring for yourself, you deserve it!