I remember (in my younger years) drinking "Black and Tan" which was half Guinness and half Strongbow Cider. It was supposed to be bitter-sweet, but I remember not liking it that much, but my friends all enjoyed it. I can't imagine cinnamon whiskey and cider together, it doesn't sound appealing to me at all.
I am a fan of ciders as a fall/winter drink, especially mulled cider served hot with lots of spices!
Well I'll tell you this much I don't like cinnamon at all but this combination worked pretty well well at least one of the ciders that I mixed the other one was pretty nasty