Pluspunten
The health benefits and stock options are generous and offered to even part-timers. That was the reason I applied for the job - I wanted the flexibility of the part-time schedule without having to live in fear that a single medical or dental issue could do me in. The hourly rate was slightly higher than other similar jobs in the area - I got $7.75 to start in 2003 - and the peace of mind from the benefits was lovely. Management was v. flexible, training was impressively thorough, and it was fun to work with and meet all sorts of people. The free pound of coffee a week was fab, as was the 20% discount on other items sold at the store. Management also was very supportive of those who wanted to make a career at Starbucks - plenty of information and opportunity was provided for those who wanted it. The drive-thru was fun - my favorite spot behind the counter. And the tips were nice, too.
Minpunten
Unless you work midday (12p -8p, aka "the princess shift"), be prepared for manual labor: lugging heavy boxes up and down stairs; scrubbing the bathrooms more than once during shift; sweeping and mopping the floor; vacuuming (by dragging around a heavy industrial model); moving around outdoor furniture; and hefting multiple gallons of milk and other products while dodging coworkers, avoiding spills, etc. Or: it takes more of a physical toll than you might expect. Additionally, if you work with someone who's messy, unsafe, etc., you'll be very affected by it b/c you're in very close quarters with no escape. And if you get a manager who hates dealing with scheduling and thus puts it off until the last minute without looking at requests for days off (hooray!), that can create problems among the staff.