Fairly easy to figure out, easy to copy sets within intervals. Using this as my run/walk interval timer when my workout calls for differing intervals at specific times. Putting those workouts on my Garmin messes with my ability to analyze my pace for each overall segment. So when trying to hit specific paces within those intervals, having them be on time is of utter importance. I’ve noticed that the workouts I’ve built within this app eventually lag behind beginning the intervals, so each run and walk segment gets just a little longer. I’ve verified this by watching my watch when the countdown to switch starts and the next countdown, it’s not 30secs. Example, at the end of my made 31min workout in the app (1min warmup, 10min of 30/30 intervals, 5min of different intervals, 5min of yet different intervals, and finishing off with 10min of the first intervals), the total workout when finished says final time of 30:49.I wonder if the programming isn’t taking the voice prompts into consideration making this not the best for run/walk intervals of when trying to be very regimented about exact timing. Guess I’ll have to resort to wearing an interval timer.