I work right next to this place and I've been here a bunch of times so let me tell you what the deal is.
A lot of people complain about this place because they say "Ooh the cashier was unfriendly" or "Oh the food wasn't like an asian master would prepare" well no kidding you big drungus, it's because you're at Pei Wei and it's like a fast food place if you wanted authentic asian experiences you screwed up already.
Pei Wei is where you go if you want a bowl of noodles or rice and you want some stuff on top with a sauce. Just order it and move down the line and if there's a table then sit at a table or maybe take it back to you office. It's just food. This location is pretty average in terms of speed and politeness, and the food seems to be cooked appropriately so what else do you want?
Here's my PRO TIP: When you go to the place where the drinks are right after you order, get a fortune cookie, but slip it into your pocket, then at the end of the meal, go back and say outloud "Oh man I am going to get a fortune cookie" so they don't think you're taking two and then swipe a second one and eat it there. They've got the most delicious fortune cookies and even though the messages are usually something stupid about sports like "Oh you're gonna have a good sportsball game tomorrow" you can still enjoy the cookie, and you've already swiped a second one to enjoy later so you're the real winner - sportsball or not.