Size doesn't matter
If a tree produces a small fruit and a large fruit, either can taste great. Generally, a tree that produces small fruit on average will produce a higher quantity of fruit.
As with mangos, likes and dislikes vary by person. I have eaten excellent gold nuggets.
Eating quality is quite variable on the same tree in the same year. One fruit can be very crisp and another can be less so. Flavor is also variable. One fruit will be well blended sweet and sour and the next can be sickly sweet. Fungus can infect fruits, evidenced by brown streaks or general browning of the core. Sometimes this will affect flavor. I have
Time to fruit can be variable. I have had grafted jaks fruit in 2 years from 3 gal and I have some in the ground close to 8 years and plenty big and no fruit yet. Same with seedlings.
Seedlings do not grow true to seed. I have fruited seedlings from excellent fruit that are terrible. I have a few seedlings that exceeded their parents. I have fruited 5 seedlings from the same fruit and all 5 fruits were different.
A theory that has been floated on this forum is that if you pick earlier, the fruit will be less sweet and more sour. I am still undecided on this. Generally, I wait until the fruit is soft on the tree. I recently ran a test on my bangkok lemon, which often produces fruit with no sour component. I picked a hard fruit, it took a full week to ripen, and it was still sickly sweet with no sour component. The fruit I had picked a week before, also hard, did have acidity and was well balanced, according the person that consumed it. I have not picked and eaten enough early picked fruits to come to a conclusion if it makes a difference.