I have been to this Panera quite a few times. The food is just the same as other Panera's, however the staff (most of the time) and location is better then others. They ask you if you would like to tip on the keypad now. I don't mind tipping the dollar since they bring the food to you. I also ask for extra sauce over the counter sometimes and they never hesitate to "fork" it over.
The three stars is not because of the food or service. It is not because of the cleanliness in the dining area. The three stars is for the bathroom cleanliness and me witnessing something that just appalled me. A couple visits ago, a staff member told another staff member that something was wrong on the menu up on the wall. The staff member then got up on the counter and stood on it to fix whatever was wrong. The staff member then proceeded to carry on with their work, however didn't even sanitize the counter they just put their dirty shoes on. They should NOT be climbing and standing on the counter spaces to do anything! Very disgusting. Also dangerous. I'm sure OSHA would not approve.
The three stars, to me, is being generous, simply because the staff is generally very nice and helpful and the dining area is well kept.