Cherimoya and mountain soursop do not exist in the same taste universe. I have eaten a fruit and i could say it was edible but not enjoyable. This fruit might be a better fit in the projectile category than edible category. I have a tree planted but it is for rootstock and curiosity, not eating. Maybe, one day, I will try to create a hybrid with regular soursop. You might be able to get it to fruit in a pot. You have to have space to waste to put one in the ground.