Very easy to use at the gym. I like how it logs total weight from each excersize I.e) 5 reps @ 100 lbs for 3 sets is 1500 lbs. It would be cool if the app added all the totals from every excersize and gave you a total weight moved #. My first goal would be to hit 1,000,000 lbs then I would try and cut down the time/ number of excersizes to reach it again.