Smells like sewerage (which is why they're banned in most hotels, planes, transit and enclosed spaces where they're common), tastes like a fancy dessert. It's a complex flavour that's honestly unique, and they don't all taste the same - various sub-varieties exist.

To me the most consistent flavour of them is a very creamy mild honeydew-melon and vanilla flavour, with a dash of banana. Very pleasantly floral and generally quite sweet.

Given that description you'd think I'd love them but I actually can't stand the smell and look (bro the fruit flesh looks like yellow turds), I've only ever eaten them under duress haha.