My experience with Ticketmaster last night:
when you finally get to the end of the queue I got booted out. Joined the queue again immediately and it moved me to the buy ticket phase. If I had refreshed or pressed the back button I would have got booted to the back of the queue.
I was trying to buy 4 in a good seated area and Ticketmaster kept suggesting 'crap view' seats. After refusing about five times I got booted out again for being a picky bastard. This time I did have to start again and picked a different date. Shorter queue. This time fuck it I went for Premium seats and lo and behold 4 crackers immediately. I think any descent seats are being badged 'premium'. So if you can afford the extra £50 or so, that's probably the way to go if you want the best seat possible. Good luck to everyone that is trying this morning. The Website was glitchy enough last night so be careful and don't panic if something goes wrong. Use refresh only when there is no other option.