Summary: BAD! If you want a watch for approximate distance, spend the $150. If you want to seriously train and adjust your workouts based on the watch, you are making a big mistake. I have accurately measured/marked courses, and this watch is +/- 10%. It should be <1%.
Summary: Takes a long time to find GPS satellites. GPS does not work indoors (indoor running track, swimming laps). Software program difficult to operate for downloading information - not very clear. When battery runs out, you need to set date/time all over again. Altitude gain not accurate.
Summary: better than I expected. I really like the size and the fact that I will never have to worry about my battery going out and the hassle of sending it back to the manufacter for a new battery. I simply recharge it every two weeks.
Summary: After running with this watch for a few weeks I love it! It's just what I was looking for. I've ran with a Garmin for years, but it finally died. My only complaint about the Garmin was the touch screen/sides weren't always responsive.