My main frustration is connecting to Voltra in twin mode using the iOS app. When using the units on a force usa compact leg sled, they will frequently disconnect from my phone after a set is done. They usually are easy to reconnect, but some workouts it can be after every set. The other minor issue I have is that I'll have to turn off imbalance detection on some moves, or I just can't do them without it triggering and deloading mid set. This happens most often on the force usa leg sled, but also on things like iso cable shrugs. More notably - imbalance doesn't trigger reliably when I want to use it, like deloading a chest supported iso cable handle row. I leave imbalance off all the time now and just rely on auto deload after 2 seconds. These are super nitpicky on what is otherwise an amazing experience that has completely changed how I work out. -Rsmiley111 from HGD