I use since about the Forerunner 305 now one month for the preparation of a long race run over 31 km, am very satisfied and can only agree with the vast majority very positive assessments of Vorrezensenten total. As a longtime runner fascinated me personally the opportunity to have completed training at the PC with both the Garmin Software Training Center (downloaded from the website, since CD did not work) as well as with the software SportTracks regarding routing (road / map and Google Earth!), And length and speed to be able to understand and analyze (storage time per kilometer per car-Lap). This encourages the training and you're ready the "beaten" paths and routes, whose length is known to leave once and to try out new versions. You know always due to according to your wishes for custom display (simultaneously up to 4 different levels), how many Km you're already gone. Besides a running log is automatically performed, which provides further analysis and comparisons to be made weekly / monthly etc. km. To clarify: I'm really not a PC freak but rather spend time with running themselves, but in addition to the current information during exercise, the running sessions also understand fun and motivated again. Certainly the clock is greater than other running watches, still wearing the wrist is not because of excessive weight without any problems. Also preparing the operation, which is sometimes criticized because of the good, the German manual no difficulties. However, I do not use all the possibilities (eg creating training sequences UAE), which provides the equipment.