Taste
As an Englishman living in Scotland for the last 13 or so years, I've never really gotten used to the taste. Imagine the taste of sweaty socks mixed with burning tyres...
That's Irn Bru.
I actually think it tastes better when it's flat, rather than fizzy. It's smoother. But I think the same about cola, so it's probably just me.
My six-year old daughter bloody loves the stuff, though.
Given that she's such a fan, I'm quite happy to hear of the sugar reduction; maybe we won't need to be so stingy in rationing it!