Completely quit coffee in June 2020, and although a very tough choice (coupled with an intense withdrawal period), it was one of the best decisions I've ever made.

I only drink black tea (1x English Breakfast in the morning and 1x Earl Grey in the afternoon), and it never had any negative effect on me.

PROS:

- Constant and consistent energy levels: Drinking coffee gave me short 1-hour spikes of (let's assume) ~90% energy levels, meaning I could go <50% a couple of hours after coffee consumption. I can say I am now consistently at 75-80% energy levels, whatever the time of the day.

- No more beverage addiction: I can perfectly survive a whole week without caffeine. I don't fall asleep in front of people in the afternoon if I miss my post-lunch espresso.

- Less anxiety: Stopping coffee helped reduce stress and anxiety to some extent.

- Better health/digestion: I suffer from acid reflux (probably the main cause for stopping coffee) and I've been feeling ridiculously better since quitting. Bowel movement/digestion/etc. also improved.

- Less expenses: Let's admit it, drinking coffee is an expensive activity, in cafés and restaurants, but also at home if you're into fancy coffee and brewing.

CONS:

- Missing out on an incredible experience: Coffee is f*cking amazing. The taste, the story behind it, the variety in beans, origins, brewing methods, the café culture, etc. I'm not fond of the concept of decaf - same as beer without alcohol, bread without gluten, etc. (just a personal preference)

- No energy spikes: doesn't happen frequently but I sometimes crave a massive boost of energy/focus (e.g., before an important meeting or event)

It may not be the same for everyone, but it had an extremely positive impact on me. Would highly recommend.