The key is the integration of position data via GPS, for devices made by Garmin absolute veterans in the field of navigation, of course, a compulsory exercise. The Forerunner records while running the pulse and the current position, and after transfer to a PC to get everything clearly illustrated in tables and charts. Here then is an additional motivation: I've recorded just half a dozen runs, always on the same circuit track, but already see an improvement as tended to be lower in the constant, steady going pulse. It gets really hot, to collect more data to become better and more just to be on the way the race track! This fact should not be underestimated, because it is the duration of motivation is a problem, so many set-over after the initial motivation, see above, her training again.
Incidentally, the transfer to the computer not a must. All recordings can also be viewed on the Forerunner itself, there naturally without the comfort of a large monitor. Garmin Forerunner 305
A few hints with regard to details that appear in other reviews over and over:
First GPS receiver: Is the city of Darmstadt properly, the old residential quarters as well as in Mr. Garden (City Park). I put the Forerunner turned on the balcony while I wear gym clothes can get started in 5 minutes later, with bugs fixed satellite and do not need to wait.