Express doesn't actually mean fast nor do the prices reflect that this is not a full service restaurant. Place your order at the counter, where the cashier tries to awkwardly up sell you on everything (as if she's working on commission) and then your food is brought later to the table and not at record speed.
Our two seater booth was uncomfortably food courtish. Food was standard Greek fare without exceptional flavouring. My pork souvlaki was tender but not memorable and the Greek Salad really skimped on the feta. If you're here for a quick lunch, don't depend on it.