soo, i tried mamey the other day.. my friend ordered a case of them from FL thru his organic distributor.. it was good, but i can't say that i was wowed.. however, i know they are not close to what i would get if i were in florida getting them tree ripened.. wasn't as soft and custardy as it looks in some of the pics and vids i've seen (which reinforces my belief that tropical fruit can't ripen the same in my temperate environment)
i described it as "a digestible carrot" lol.. wasn't incredibly sweet, so we made a pudding by blending a few of them with some dates.. ended up tasting even more like carrot when sweetened, which was kinda nice, since i haven't eaten carrots for a long time
*Update: I've had mamey many times since writing this, and it can indeed be very creamy, sweet and delicious (yes, pumpkin pie or sweet potato like). Conclusion is that this was a bad batch, possibly picked underripe or mistreated, preventing proper ripening. Def give it a try if you get the chance.
It wasn't ripe. Ripe mamey is a dream.
If it's hard and light orange you're screwed, just give it some more time.