Hi Cassie, I'm very familiar with the Lose The Backpain website. I've tried several of their products and have to say I was hugely disappointed. In my opinion, they are very slick marketers, and very good at selling you their many products. But you won't find any negative reviews on their site because they delete them instantly
As for muscle balance therapy, I think its quite well established (there's lots of published material on it) and if you can find a good PT, I would say give it a try.
Just be careful to avoid the snake oil salesman