I am so happy I have this bundle! These bands are the best and never slip on my legs. The workout guide is beautiful and organized so nicely - I love the quickness of the workouts. Very pleased with everything! The only thing I’ve found difficult is knowing exactly how long a workout will take me if reps are involved. A 30 minute workout sounds attractive, but I’ve found it can take a little longer if the circuits aren’t all timed. Still quick, but I don’t always have the time actually needed to finish. Still highly recommend, though, because of the variety of workouts offered and additional info about working out with resistance bands!