I like that it's easy for me as an athlete or coach who is not tech savvy, to use this app because of its simplicity! It can be used by anyone regardless if they are technical savy or have no clue how things work online at all!! There aren't many downsides either but maybe there could be more tutorials in order to help people learn everything about what you do with their apps? If your looking for something very simple then go ahead and give them a try.
This program helps us keep track of our workouts and their progress while also keeping up with training partners so we know when someone needs extra motivation from time-to-time.