San pellegrino makes chinnoto as well, had it at a really good thin crust pizza place called Emilio Finnati's

Sadly they don't often have it in stock anymore, but I've found a bunch of it from various makers now that i know it exists.

Is not for everyone for sure but it's absolutely worth trying just to see if you are one of the people that find it really great.

I think anyone who likes or isnt bothered by the bitterness marmalade would be likely to enjoy this