I have a few friends who have started using TRX for their own training as well as training their clients.
For those of you not familiar with the TRX System, it's based on an extremely simple yet effective concept - suspension training using your own body weight to develop strength, flexibility and core stability.
It is the original "gym in a bag" and still considered tops, as it has been voted by both Women's Health and Men's Health magazine as the best total body training tool of 2009.
Master trainer Alwyn Cosgrove has put together two killer circuits using the TRX System. If you currently own TRX, give these a try and please post your feedback! I'd also love to hear about your own TRX circuits!!