Talking about convenient store coffee, I only drink black coffee americano so my review is black coffee only. IKEA has the worst coffee, the coffee beans is so bland and bitter like chinese medicine. McD is balance taste, better than Starbucks. Starbucks their americano alone is quite weak, too diluted I do not recommend, I think starbucks is more popular of their frappuccino drink, need ingredients like milk and sugar to cover their not so good coffee. Family Mart I like the most because of the light body profile.