I had raw horse at a bar Saturday.
raw horse review: very hemoglobin-y. very chewy. I think these slices were too big. it didn't really break down when chewed, so I just formed it into a sphere for swallowing.
flavor was most like lean bluefin tuna sashimi, which is probably why they like it. I don't have any evidence that "they" like it though because none of the Japanese people I was with tried it.