Garmin Edge with GPS question

[OakLeaf]

+1 on DCRainmaker, and also take a look at the Garmin user forums. As long as you understand what you're looking at with user forums - nothing is ever perfect, and people with buggy units are a whole lot more likely to post than people with no problems - but by looking at the persistence of various threads, etc., you can get an idea of what the major problems with each model are, and how well Garmin has them solved.

The feature you're looking for is called "turn-by-turn navigation." With all the lumbopelvic improvement I've been getting recently, I'm actually kind of hopeful about getting back on the bike enough to warrant a new Garmin in the next year or so, assuming everything else stays healthy (my old 705 still works, but the processor doesn't have the power to handle modern route files) - and I'm kind of looking at the "Touring" model, the one without the fitness features. If he doesn't need heart rate or power metering, you can save a bunch of money that way.