I really enjoyed working out using this program.
It was easy enough that anyone could use it, but also challenging enough so you never got bored! The timer is great as well, because sometimes other apps might get stuck or slow down when they are trying to keep up your pace during an interval workout session (which is what we used most of our workouts). Sometimes there would be minor technical glitches like needing to restart after stopping/restarting while doing cardio exercises. But overall very simple software that helped me maintain my exercise routine throughout several months without having any setbacks due to lack of motivation from myself!