It's more straightforward to visit the oracle at Delphi than to get to a "genius" at Apple. The app now prohibits making an appointment and once you obtain one it is a one way bet. If you are late it's cancelled but I'm punctual, thus I'm waiting while they are half hour late!
In fairness the employee who assisted me was really great. Doing everything in his authority to help. The store environment is truly punishing- HOT like dante's inferno (perhaps the third ring) to make it feel cooler they have fans on the floor blowing dust in your face, I know it seems like I'm exaggerating but it's the truth. Meanwhile the corporate policies prevent the employees from being very much help at all in working with existing customers. My total spending at Apple in the past five years is well over $8000 yet there is no loyalty to the existing customer or historic (2013) products. I would give them zero stars however the employee was really nice in spite of the terrible hand he was dealt by his corporation.