They worked great for me. Slid sideways very controlable, had decent traction on dirt and even mud. Also pretty decent in the snow. Seemed to last forever even with pavement riding. They were very stiff so no bounce off of jumps.
The only problem I had was one came off the rim on one ride but this was due to low pressure and I didn't notice before I left. It says on the tire that it needs a beadlock rim and to run 5 psi max so that could be why as well.