Not to worry, I still love my coffee, it's just....
Before I got the machine, my typical day would involve a cup of instant at home in the morning, followed by various cups during the day, either from my flask or (if I'm working at the hospital, as I am at the moment) breakfast in their restaurant.
So, my first morning at the hospital after a 'proper' coffee for breakfast, I went into the reataurant as usual, and got my usual bacon butty and coffee.
Sipped the coffee, Bleargh! what's this stuff?
It seems I could handle it before, but now I've tasted the proper stuff I can no longer stomach theirs. So it's tea from now on.