i find starbucks extremely overrated but then again i don't like coffee, their passion fruit iced tea brings out my inner white girl by far my favorite starbucks drink, other than that, nope.
It's pretty good. There's one at my university so I get it quite a bit during term time as the uni's own coffee is gross. I prefer Costa though. I get a skinny Caramel Macchiato at Starbucks or frappucino if it's hot out.