>>12384
Well caffeine itself can be addictive. You seem to have low standards for coffee if Burger King impresses you :P.
Okay, I've never had coffee from Burger King but I'll try to help. So from the site it seems all the info we have on their coffee is that they use Arabica beans. Which is to be expected, almost everywhere uses arabica beans except instant coffee which is robusta coffee beans, and some blends of arabica and robusta.
Factors that play into a good cup include when the beans were roasted, and then when they were ground up. Roasted coffee should stay fresh for about a couple of weeks if kept in a container, ground coffee's freshness lasts for a few minutes to a few hours.
So if you're making them at home, it's best to use the roasted coffee beans as soon as you grind them. Make sure the water you use to brew them is not boiling water, but a few degress off of a boil, approx 200F/93C
I'm assuming you're using the American-style drip brewing method right?
Any questions?