It does certainly take time...
I booked yesterday. It was originally my intention to go up to CG and start queuing around 6:45-07:00 but I have the flu and even a cup of tea in bed at 5AM wasn't going to get me started. So I had to use the phone.
I started dialling, on my flu death bed(!), at 10 and eventually got through 18 minutes later. During that time I was just using the redial key constantly. I was then in the 'waiting for operator' queue for about 25 minutes. All up it took 50 minutes, when I could do nothing else. On a positive note the choice of tickets seemed reasonable.
On the Internet booking side I think it is very wise that ROH don't open that on the same day - all the tickets could be gone very quickly unless a lot of very elaborate arrangements (themselves liable to go wrong...) were made.