Very easy to use , stayed on my finger and was easy to operate on land running and in the water for lap swimming.  It is exactly what I wanted and now I can track my workouts etc. much easier.

It took me a couple sessions to figure out how best to use this device but once I did I am a happy swimmer.  At my age, I don''t try to read the display while I''m swimming, I just glance at the wall clock which is big enough for me to see.  The form factor for the counter could be better.  The natural flat on the counter is where your thumb wants to settle in for pushing the button, however the button is on the side of the display flat area so I have to feel around to make sure my thumb is centered before I push for a count.

Easy to use when counting my lap swimming. Doesn''t get in the way.

Wouldn''t be without it..

My goal when I get in the pool is to swim at least 150-160 links. Sometimes I would forget my count which is pretty frustrating. Now I can focus more on technique and breathing. Pretty simple to use once you remember you have it on. I still glance every 10 links or so to make sure I''m not forgetting to push the button. It would be cool if it had a "clicker" when you push the button because sometimes you think you missed the button, but it is pretty sensitive. This is really a good way to stay on top of your laps...if your counting the is.

This is a must for serious lap swimmers.  Highly recommend!

Easy to use and easy to read in the water. Not burdened with extra bells and whistles; it does just what I want it to: help me keep up with my laps!