So as much as i loved my personal trainer, I had to stop using him since I couldn't afford it anymore. One of the things I really liked when training with him was the trx straps. trx straps are $300/piece. I couldn't shell out that money, even though they are worth it. psa: amazon's AXR 100 suspension straps are really really good and way cheaper ($50). You can get a mount for it, but I use the door stopper thing that it comes with.
Seriously, such a good arm workout. There are core & leg workouts too, but for me, I'm focusing on the arms. No matter how lazy I am (and trust me, I'm lazy!) I try to find time to do some workouts on my axr straps while watching TV every night. You'll feel the burn