Has anyone tried a "leather" turntable mat?

I was wondering if anyone has used one of the new "MooMats" or a "Hide in the Sound" leather turntable mat?

How are they compared to like a felt mat or even to a nicer Boston Audio/Audioquest/Funk Firm/etc. mat?

I had a leather turntable mat way back when, but it really didn't work very well. I was curious as to the new crop...