So many people thinks decaf tastes bad, but it really, truly does not. My parents come over for dinner most Sunday's and I usually make a pot of one of my gourmet decaf's and my pops doesn't know any different. For a while, I told my mom it was decaf and we didn't tell my dad. He always asked me what kind of coffee I had made and I told him, just didn't add that it was decaf. Now he knows that he had been drinking decaf and was surprised that he couldn't tell the difference. It's a "thing" now, with my parents, that we compare different flavors of coffee, and what's good to make what type of drink with, etc. I also grind my own beans for each pot and turned my parents on to that. It makes a real difference in the flavor.
I know before I quite caffeine, which I probably would not have done without provocation, I was seriously addicted. I would get awful headaches if I didn't have enough caffeine in my system at all times. I woke up with headaches alot, which went away after I mainlined some coffee, or mountain dew even. When I quit caffeine, I had a headache for two or three days that nothing would help, but it finally did go away. Not a good few days in my house, let me tell ya. It was much easier to give up the caffeine than it was to quit smoking though!!! After the initial few days, it was easy street. I just didn't drink anything with caffeine anymore and haven't had any problems since the marathon headache. Honestly, once or twice in the past couple of years I have sipped something with caffeine to get rid of a headache that just wouldn't go away - and it worked! I don't even miss that jump start in the morning!
Good luck with your caffeine cut-back if you decide to do it!