Yeah, I made some last year. I love pluots, love the sweet tartness of them. I was trying to make a dry table wine, so I did not backsweeten at all.
It came out very very tart. The taste of the pluots was in the front, and was nice; but there was a bite of tartness in the aftertaste that was not pleasant. If I didn't backsweeten, at least I should probably have balanced the acid a little better. I'm going to age it in the bottles for a year (or probably two). I think (hope) it will mellow out then.