I've come to appreciate the bitter flavor of coffee. At the nursing home I work at, their coffee has no flavor

I don't drink it that often. Its really more of a treat to me. I like mine a little sweet with maybe vanilla flavor, but just enough. I can't stand overly sweetened coffee drinks, like those cappuccino things at Starbucks. No thanks. That isn't even coffee, it's just a dessert beverage with coffee in it.

I don't like coffee that's too sharp / acidic. I can stand it, but I don't like it all that much.

Flavored black coffee is also nice. Just soft flavors like vanilla.