Originally Posted by
csport
As the others say, it may be difficult to configure things using buttons without stopping during the ride, but if you know what you want it is not a problem.
Succinct.
Setting up and using a Garmin 5X0 series is almost a parallel to putting on old-fashioned cyclometer on a new bike. Takes a while to set it up the first time, then it's just a matter of pushing a button a couple times during a ride.