I've purchased two iPhones by pre-order with home delivery on launch days. I didn't pre-order this year and decided to upgrade my iPhone 5 at the Apple Store the Sunday of launch weekend. The store was packed and an associate asked if I had made a reservation. I hadn't. I was sent to a short iPhone line and checked in. I asked for a 6S, 64G, AT&T in Space Gray. With the phone in stock I was made an appointment and walked out about 20 minutes later with the phone and case. I've typically spent the week prior to launch day glued to the carrier's tracking website while burning a vacation day on Friday. The walk-in went well. How did your 6S / 6S Plus buying experience go?