Has anyone used the X3 bar with bands set? I just recently got mine and was really having second thoughts on spending that much money for a patented bar and resistance bands. After using it, I must say that I am very impressed. I have never felt muscular contraction in this way before, and the time of my workouts has been cut in half just because my muscles are actually completely exhausted so much faster. Just curious to hear what anyone else has thinks about it or how they like it so far. Thanks!