Comment by lend000

This is consistent with my experience.

I've had great results, and every workout I do consists of an exercise I can do at least 20 reps of for the first set, sometimes going up to 50. I can still gain strength by increasing the weight slowly week by week but maintaining a high level of reps. I don't think it takes longer at the gym -- just do 2 sets per motion instead of the more common 3-5. The breaks in between sets at the gym are the real time sink. Plus, you get lean muscle with high endurance, and virtually no injuries. Last tip: put your phone/music in a locker while you're at the gym if you want to both improve your workout, save time, and practice being more present.