ditch cranberry and get raspberry lemonade..
i think its cos your canadian, you dont realise what a big deal raspberry lemonade is, WE DONT GET SHIT LIKE THIS HERE! basically its a break through, people will be very into it.
me and many people are a fan of sugar and fizz, this should exist as an option.
i also reckon its patronising to refuse to serve one drink cos of sugar and fizz, but to serve coffee which is loads worse and more unhealthy.
Maybe it could work? But it will be a kaleidoscopic blend of mysterious shadows and rainbow hued-dreams seen through compassionate tears.