I like the staff here - the young'ns are friendly and not snarky or rude the way I can imagine I might be if I was forced to deal with the incessant crowd of hippies, homeless, 9-to-5ers and picky folks.
I can't say anything about their espressos as I've mostly gotten fraps here (a rare treat for me) and tea.. I usually go here to hang out with my sis (who is literally a permanent fixture here) and it's a nice atmosphere inside and outside with all the seating available (definitely a huge draw to this place, as it is plentiful).