Service was good and fast. I stopped at this Starbucks before walking to my gate.
I ordered 2 warm blueberry muffins, a grande coffee and a water. My total was roughly 16 bucks. The cashier was super nice and perky at 5am and thanked everyone for waiting as they approached the counter.
The counter area is pretty small and it is a little overcrowded with things you can purchase. There is plenty of various thins you can purchase with the Vegas logo on it and plenty of snacks.
The SB is conveniently located up the escalators as you are walking to your gates so you can't miss it. There are three other locations in the airport, so if it is a long line. I recommend waiting in line at SB closest to your gate.