It definitely varies from person to person. I'm on the more sensitive side of tasting bitter substances, although I do like bitter foods like Brussels sprouts, grapefruit and kumquats, and I'm okay when food is sometimes bitter, as happens with cucumbers and eggplant, but when foods that aren't normally bitter are sweetened with bitter sweeteners, I really don't like them, even if it's a natural sweetener, like stevia.
Aspartame tastes fine to me. I think it's one of those things that some people can taste and others cannot.
It definitely varies from person to person. I'm on the more sensitive side of tasting bitter substances, although I do like bitter foods like Brussels sprouts, grapefruit and kumquats, and I'm okay when food is sometimes bitter, as happens with cucumbers and eggplant, but when foods that aren't normally bitter are sweetened with bitter sweeteners, I really don't like them, even if it's a natural sweetener, like stevia.