What is the appeal of coffee? I tried it once and found I did not like the taste at all. I know people drink it for the caffeine, but I just can not find it tasty at all.
There's a few things to remember about coffee...
First, any kind of beans can make a good cup of coffee. You just need to get grounds to water ratio right, so you end up with just the right strength. A lot of people are under the delusion that stronger coffee always equals better coffee, and that you can make bad coffee good by making it stronger. That line of thought is complete idiocy. Coffee that is too strong can be just as bad, of not worse than coffee that is too weak.
Second, sugar and cream are like gravy -- add enough of it, and it'll make anything taste good. That means two things... A) It's a good way to start yourself sampling coffee, and B) a lot of coffee shops have a tendency to hide bad coffee under oodles of milk, whipped cream, sugar, and flavored syrups.
Lasty, freshness is very important. Especially when your using a typical drip coffee maker with a hot plate. If the coffee sits on the hot plate for too long, it scorches the coffee, bitter oils form on the surface, and the water slowly steams away, concentrating the remainder. After an hour or two, you end up with a bitter-burnt tasting coffee that's too strong.
This is why, surprisingly enough, I find some of the best "ordinary coffee" comes from places like McDonalds or Dunkin Donuts... The turn-over rate for their coffee is so high that it is always fresh. And since they use pre-measured packets of coffee grounds, it's almost impossible for them to get the dosage wrong.