Mine had poor fruit set, too. Possibly because it bloomed so late and not many other plum flowers were available to cross pollinate it.
I think taste is so subjective/personal. I’ve read here that some people were so turned off by strong bubble gum taste. I believe one person removed the tree. Then, there are people who absolutely love it. I am fine with it. A few I had last year only had a hint of bubble gum flavor.
Some people also detected strong bubble gum, others did not.
@warmwxrules - I pm’d you.