I have to say I agree with the review of this Einstein's about the line problem, and also I agree that the signage is bad.
Lines are confusing, they do handle crowds fairly well but I've noticed that on weekend mornings can take a long time to get your food. The coffee isn't great either (very weak). I usually get my coffee somewhere before going here for the food. I go here because it's convenient and it has a nice sunny patio with lots of tables and chairs. The manager and employees seem nice. The Lox and Cream Cheese bagel sandwich is to die for. It took several visits before I was offered a customer card that would have given me a jump on discounts. Apparently you're supposed to notice it among all the hubbub while ordering and paying for your food and trying not to hold up the line. They should ask when ringing you up if you have a card.