I personally do not like any sugar in my coffee unless at a Viennese coffee house. I have a lot of amazing coffee roasters in the area.
I still find McDonald’s coffee to be good for the price. Well, as long as there is a bit of creamer in it. I don’t ever eat at McDonald’s, I only go there for coffee if I need something quick and cheap that is better than gas station / 7-Eleven / Starbucks coffee.
I don’t use creamer/milk in any actual good coffee. I prefer my coffee black to actually taste it, and normally it’s already sweet without anything added. And don’t like drip coffee usually.