No, walk ins are permitted but, an appointment will eliminate the risk of a long wait.
Yes, you need an appointment.
I have been to the store several times in the afternoon and the average wait time has been 15 minutes.
It would be a good idea bit if u show up at 9 and wait for them to open at 10 u will be seen first. There is always a line waiting for them to open
Thanks! Your answer is awaiting moderation.