I really have liked using this extender. it gives the ability of hanging while being able to move. it has made it possible to get more hours in because of the ease of use. I love the Bluetooth ability with the app. once it's on it would be a pain to try and check what weight it's at but displaying the current weight through Bluetooth makes it easy to monitor as changes happen throughout the workout.
I would like the app to allow entries of weight because a couple times the connection got interrupted and for some reason the hours it has been tracking is more than I have been doing (saying I did 5 or 6 hours a day when it was 3).
this extender builds the fatigue and feels like it's working great. I recommend it!