I have a life long love affair with caffeine. I doubt there is many who consumed caffeine in the quantity which did I. My delivery vehicle of choice for most of my life was diet soda, but I've always loved and drank coffee too. Then, when I gave up diet soda late last year, I made up for it with more coffee. The addiction got ridiculous. I'd have to get my coffee in me as quick as possible in the morning because I could not even focus to get dressed without it. If I didn't get my regular dose through the day, I'd get to feeling crappy. So, about six weeks ago, I did what I had to do: went cold turkey.
Man, I was miserable for about four days. Felt unwell for about another four. And then, it was past. I must say, I feel better without the addiction to the stimulant. Nothing radical, but definitely better. Or maybe it is just consistently better. About two weeks ago, I started drinking decaf coffee and I'm enjoying that with regularity. I may add a cup of leaded in the morning some time, but not for now...I feel like I've not got the habit fully beat yet.
So, I recommend it, but I think it is a highly individual thing. And if it isn't bothering you or debilitating to you, then I'd just keep my coffee and enjoy its many benefits.