Strengths: Very good grip in deep mud and on slippery steep downhill. OK for short distances (1-2k) on road.
Weaknesses: Haven't found any yet.
Overall: Comfortable and not too heavy, tho' difficult to judge weight with a kilo or two of mud added on the May Hill Massacre. Gave confidence when running fast downhill in slippery conditions. An all round 4x4 of the running world.