I have something that is at least 50% C. pubescens.
The fruits are small (smaller than a fist), turn yellow at this time of year (winter) when they are ready to eat.
They have almost no sweetness, but do smell great. Chopped to pieces and with some sugar they are rather tasty.
The taste, however, is nothing like regular papaya. I can't really describe it,..., maybe a bit like pineapple.
I was kind of surprised to find out that miracle fruit works on this fruit, making it sweet. The high papain content
is supposed to denature proteins, but the miraculin still manages to produce its effect.