analysis from an American friend who was there:
<<Lower deck seating is shallow and far away from the track on the straights, with lousy perspective for athletics. I’m told these are A and AA category tickets [which means that once again, they've had a moron in charge of figuring where the best track views are; the good news is that if you you didn't splurge on the high-end tix you were probably better off].
Most surprising was the number of seats not covered by the stadium roof. In the lower deck, the first 20 of about 24 rows are not under cover. In the upper deck, the first 5-6 rows will also get wet in the rain. Upper deck seats have better sightlines, but are far away as well.
The stadium looked to be about 70% full for the test event. Security lines were a breeze. I walked right through, no waiting. Queues for concessions, though, were extremely long.
On the plus side, access is easy and there is a huge Westfield shopping mall attached to the Stratford tube station, with tons of shopping, restaurants, fast food outlets, coffee shops, etc. The restaurants and food court were open past 10:30 pm on the night of the test event, so I’d assume they’ll have late hours during the Games as well. It’s an easy 10-minute walk from the tube station to the Olympic Park entrance and another 10 minutes to the Olympic stadium (assuming no waiting in security). >>