If you live where it rarely rains during the growing season, pluots are fine, but in the humid regions certainly some can be a challenge as their tendency to ripen hard can lead to a lot of cracking. I don’t have enough experience with them yet to offer reports of significance, but I’ve been cropping Flavor Grenade for 5 years but only ended up with a good crop once. It was dry for a month leading up to harvest.
However, I live in a sheltered spot that holds a heavy dew for too long. This also leads to bacterial spot problems with many West Coast bred varieties of pluots and even J. and E plums.
I haven’t planted that many yet in other orchards and won’t be able to provide definitive info for a long time, but keep in mind, commercial West Coast growers complain about the tendency of pluots not to crop well and are often not very profitable for this reason. Never underestimate the value of a variety to consistently crop well. Home growers need all the help we can get.