Nice tread , i am also growing pepino mellons, last year i had 2 varieties, one with round fruit and another eith elongated oval ones. Didnt had them growing in the perfect conditions whille the fruit was ripening so it really wasnt that good. I discarded the round one, now left with the elongated type.
Havent really had a nicely ripened fruit till now, they awlays set in late summer/ fall ,dus they never have the chance to ripen in the sun and warmth.
2 years ago i had one thatripened earlier and i remember it was quite nice, aromatic, refreshing and juicy.
This year i will be making some kind of a trellis along a wall for them, also planting them in extra large pots so they have alot of room.
They awlays seem to have a mite or a whitefly infestation for me, quite prone to those 2 . Flowers smell like urine left in the sun , i really hate the smell of those flowers...