It's an Einstein's so you can't expect too much. My usual quality assessment of Einstein's centers on two things since the food is largely consistent across locations. The two things are: (1) quality of service and (2) timeliness, which is especially important since this location is in the airport.
1.) Service: The service at this location is average. One employee, who was preparing food, completely ignored us when we walked up. The lady who was at the register was very nice though; I enjoyed interacting with her. Our order was fairly simple, but we did ask to change the cheese on one sandwich. Unfortunately, this instruction was lost in translation and the final product didn't have the correct ingredients. I also asked for my bagel to be toasted and if it was, I couldn't tell.
2.) The timelessness was good for an airport. They probably saved time *not* toasting my bagel. We were also the only customers in line so there wasn't a lot happening.
It was an average experience at an average chain. You pretty much get what you'd expect.