I had the first glass of my single hop Calypso pale Saturday. It's a decent hop. I can get some of the apple characteristics that it's described as having, but no pear. The apple is sort of a tart apple (but no, the batch is not infected).
It's got a citrus taste to it, someone described it as Meyer lemon. (I don't recall what those taste like, so I can't comment on that). I would say it's like a tart grapefruit, but different from Centennial and Cascade. I don't think it's great on it's own (that could change with the grains, too), but paired with some other hops, it will be interesting to play with more.
I didn't get any cat piss that people describe with some hops, but I've only noticed this from mass amounts of Citra.