How hard is it to quit coffee?

Coffee is it good for you bad for you or... what?

After reading the pros and cons of caffeine in coffee I 'm still a little confused.

Pro: Improves alertness, increase dopamine levels (feel good), improves exercise performance.

Con: addictive, increases inflammation, elevates blood pressure, increased adrenaline.

Withdrawal: Sleepiness, mental fogginess, inability to concentrate, headaches.

Is one cup of coffee a day too much? How about caffienated sodas? tea? or even decaf coffee? Lots of questions and few good answers.