I run with the TomTom runner now for about 3 months. I confess I was very skeptical to spend so much money on a running clock. However, I liked the simplicity of the software and the very well-read display. At my age (64J.) At the reading glasses run use must not go. The clock can be operated and read well in training. The menus are very simple, so that anyone can get on well after a short period. The readable values ranging from my point of view completely. Other options logically complicate the operation. I know my duration, calories burned, running track and the current time. Once home, I look on My Sports track and my hours kilometers and can so my running pace (currently. Per Km, etc.) check. This has determined the GPS speed react very slowly was logical for me from the outset. (Is not a speedometer :) !!) For the preparation of my runs incl. The implementation of my training plans suited prima the clock! The GPS receiver and the battery life are for my purposes more than adequate. With the latest software update, there was again a slight improvement. It's always very difficult for manufacturers to find an optimal balance between functionality and ease of use! From my, of course, subjective point of view, this TomTom is well done. I now no longer have to drag my heavy phone with and rejoice in a reliable companion.