Lines are ALWAYS long but also always move SO quickly! The staff are efficient & get the line moving, & this comes in handy especially in those times when you're in desperate need for coffee and are also cutting it close to boarding your plane.
This is my go-to Starbucks in Terminal 4 Departures. For an airport Starbucks, there's a good amount of tables & seats inside. Would definitely sit and hang out here if I had the time.