My wife loves fresh cherries. She can eat a pound of them at a go. I've never been much on cherries, except maybe in the occasional pie. In cocktails, never been my thing. If I am ever offered a Manhattan, and cherries are part of it, I'll give 'em a try. I like the jar.
At one time, the food dye used in processed cherries was condemned as a carcinogen, but I think that dye has been long since banned and/or discarded, so cherry on. I think that was in the cheap grocery store brands anyway. People were especially concerned about the non-alcoholic kids' cocktails with cherries, that were popular in the fifties ... if you can imagine that. Sort of a bubble pipe in the cocktail realm.