After product was received  two of the LED Digits went out  in only 3 days of use. Item was returned to manufacture, and new one was received the next day. So far the product has not failed.

I believe the buttons to add or delete laps should be larger

Works great. Totally waterproof. I place it at the bottom of the pool. I cant use the conventional pace clock because I am near sighted. This product has big display. No problem for my bad eyes. Great for checking pace without stopping. Only drawback - I wish you could set pace for a time other than 60 sec.