Yeah, I own one also. I wouldn't suggest using it to brush off caked on mud though. I usually use my small bristle
oster curry comb on their legs and then go through with my stiff brush. Whatever doesn't come off, which is usually the big chunks, I just use my hands to pick it off.
I just use the block to help with the shedding process.Like Deanna said, I haven't noticed it helping with the shine though...