The Good: Fast, robust, cheap, good volume
The Bad: Heavy, only for hard-pack or road
This an ideal ghetto tire tire for poor kids who want a tire that lasts and don't want punctures on broken glass and other urban debris, but still want a tire for the street that will do dirt-jumps in the dry. It's almost like a Kenda K-Rad but tougher and heavier.
If you are getting serious about riding and have the money get a lighter tire but sacrifice some of the robustness.