Actually, coffee drinking was one of the hardest things for me to get used to while in DC. And I'm not talking 'bout that muddy fluid you call "American coffee", but rather the American espressos and Capucinos.
Israel is a haven for Espesso Bars, and the espresso and capucino culture is very wide spread. To the Israeli palate - the best taste is the Italian-style coffe, with manufacturers such as Illy, Segafredo et al.
For that reason I took me a loooooong time for me to get used to the "soury" taste the espressos and capucinos at coffee places such as Starbucks et al.
BTW, Starbucks, who succeeds in almost every place it opens a branch - was forceds to close all its branches in Israel less than 2 years after it openned them. Simply put - the Coffee was not to the liking of the Israelis.