Hello, After 1 month of use, I'm not disappointed with the tool. Avoid counting AR, provides stats handy, allows to keep a logbook of each session archiving and decrypting, ... The quality of "embedded electronics" is quite impressive: cad is closer to a PC than a regular watch. We can both see Garmin software with a PC, Iphone and Ipad ... (I guess android as well). Reliability of data: sometimes some small mistakes especially when swimming wrong, wrong turn, or too many people in the pool. => Shows quite demanding! Data transfer: as a letter to the Post: my garmin key remains all the time connected to the PC, when I get home it loads when they are close to each other. Finally the three interests that I see are: to improve his swimming, to count, store and record the mileage (semaine.mois / year). My advice for people who swim frequently with a small course sportsmanship! otherwise take a simpler model. Please do not wait to watch it without fail!