Rollinia atemoya tasted sweet and chewy banana. The pollens was from Helmut. There is no acid. The brown dots near the seeds are like your typical atemoya but sweet like brown sugar. There is no bitterness near the seeds or skin.
I might have picked the fruit too early and cut the fruit too early. I consumed the first part and it was not ripe but hard, firm, sweet, and bitter like a raw cherimoya. I waited an extra two days for the second piece which is picture below. Every part of 2nd ripen piece is sweet to the skin with some grit at the skin like a pierce or knight cherimoya. It was more chewy near the seed sack like an atemoy. There is a uniform sweetness from seed to skin. Texture is firmed and chewy at the seed and get less chewy toward the skin. Overall, it is a supreme sweet banana with meaty texture. I will give this 8 out of 10 if this was a cherimoya and a 10 out of 10 if it was an atemoya.
Right now the tree is in a 25 gallon container. I am hoping to plant the tree and see if the flavor profile will change.