I love coffee and drink at least 3 cups a day, but it's never had much impact on my mood. I'm just always fatigued, so coffee keeps me up and going. As for what type, it depends. I love the flavored kind and then I am fine with black coffee and expresso. The best coffee I've ever had was the cappuccinos I used to get in a hotel in Rome; although, I would miss having old fashioned American coffee when I was there.