I was a consultant for 10 years and worked at different places.
As long as it is black, made from coffee beans and it has caffeine, I'll drink it no questions asked.

Now I am an employee and the coffee is pretty good despite coming out of a machine.

The best coffee I ever drank was at tech-ed barcelona last year. It is a Microsoft developers event, and that coffee could be described as divine.
I don't liek espresso though. too strong for me. I'd rather drink coffee in mugs in quantity.