The trail is a great resource. The first 8 miles can be congested on weekends, but beyond that, it's really quite nice. I wouldn't do it alone, but with some company, it's really nice. Very flat and very straight until you get past Rockmart. Then there are a few very short but steep climbs. Rest houses at miles 1, 4, 11, 20 and 37 (in Rockmart), and although it looks quite remote, there's a major road that basically parallels it for support - food/water/etc.