I actually had heart for the first time last week. Me and J were in some random Izakaya eating all this tasty trout and they had a bunch of comedy items on the menu like pork heart, diaphragm, intestines etc so I said we should try heart for a laugh. Neither of us were particularly thrilled with the idea but why the smurf not. It wasn't anywhere near as bad as I thought it would be, it tasted kind of nice, but the texture was a bit smurfed up so I probably wouldn't eat it again. Texture bothers me way more about food than the taste does.