I live down the street, my favorite local spot to meet up with people and study. Good coffee! They offer square (a payment app on your iPhone, download it!) which is super convenient.
Largely, the only time I've ever seen the staff acting less than courteously is when serving an asshole that thinks his coffee is the most important thing in the universe. Otherwise... Top notch.
The staff has no concept of what they are serving, and beyond their ignorance of coffee they are genuinely unkind. The guy is a prick and they do not know what kind of espresso they pull.
Ask them to steam Half & Half for a brevelatte and see what happens. This joint is a real treat if you've foolishly bought into the concept of customer service :( :( :( three frowney faces for AF