I have never cooked with Yuzu, so I cannot judge the taste in cooked dishes. I have tasted Yuzu direct from the fruit, and it is terrible (at least to me).
Yuzu is not a fruit for out of hand eating.
That being said, I've picked Yuzu directly off the tree, to try eating the fruits, and the flavor was kind of good, not bad. I would definitely forage on the fruits in a survival situation, or a little bit on a nature trail hike.
I could even nibble on the peel a little bit and enjoy it, the peel was sort of borderline edible (in smaller amounts).
The fruits I picked were fresh off the tree and very ripe, so maybe that had something to do with it.
The segments inside were a bit dry, and extremely seedy, and the flavor is sour and not sweet, but other than that the flavor is good.
I can tell you the flavor is much better than Chinotto sour orange.
Certainly the flavor of a Yuzu fruit is nothing like the awful flavor of trifoliate hybrids.