I have the clock now for 4 weeks in use and am more than satisfied. I was a little confused because the various reviews. First to describe. It was "only" included a small Beschreiung however, was in the attention to the home page of Timex and there can be a 42 (!) Download-page instruction manual in German. The operation of the clock is very intuitive and thus the description after a short time (almost) no longer necessary. The clock really offers many opportunities for training monitoring, has various Möglchkeiten for timers, intervals, and, and, and ... In addition, there are various hiking options for navigation, such as a compass and waypoints. The GPS in my opinion is very accurate. Of course, winding forest trails curves are cut by interpolation, but it does not at 20km 300m from. The height measurement is consistent with +/- 2m compared with the information on lift stations or cabins. The GPS signal is found at different rates depending on location, ie between 20sec. and 1,5min. But to my mind in the context of what I expected. The free software and Internet portal is sufficient in my opinion, made completely clear to track workouts and evaluate. What has struck me very positive compared to other watches is the high resolution of the display. Even with 4x divided display, the values can be very well read. For this reason, 5 stars from me.