That one is a regular at my supermarket.
Expensive here too! Mine was 120 pesos for 1.5 kilos. When you consider the minimum wage here is less than 90 pesos/day.
Guanábanas are not for everyone.
Sounds like across between quano and banana.
What’s quano? (All my googling is just giving me results for guano.)
Anyhow, I let it ripen for another day before digging into it. I could have sworn I had some in the Yucatan when I we went to Progresso and Merida a few years back, but I don’t remember eating it at all. Though I remember it as cherimoya, which is very similar, but harvested more in Central and South America from what I can tell.
Very interesting flavor. Texture of bananas, taste of mango, apple, pear, maybe peach, pineapple, and a nice balance of sweet and sour. Pain in the ass to eat with all the pits, though. Definitely delicious, but a bit too spendy to make a habit of them. 
I was confused about the spelling, which means that my admittedly dumb joke doesn’t work. Just ignore me.
I’ve seen it jarred in Salvadorian shops around here. Never fresh though. I didn’t realize they’re so big.
It’s funny to me to hear a fruit described as like a combination of mangoes and something else, because I think of mango as being like a combination of banana, orange, and strawberry.
Yeah, it’s kind of an all-in-one Willy Wonka sort of fruit, I’d say. To me, mango represents that sweet-and-sour “tropical fruit” flavor that I can’t quite sum up in any other way. I could see banana, orange, and strawberry, but that doesn’t quite capture the “tropics” flavor I taste in mango. Like papaya also has that “tropics” thing going on, but with a bit of funk.
In ongoing exotic fruit news, I went back to the same supermarket tonight. I bought some more jackfruit and donut peaches. And this time they also had lychees.
I also bought some apples.