I was at classic stand east last year. From there you can get a good view of Turn 5, 6, 7, 8, 9, 10, 11, 12, 13 and 14, then you see car starting to vanish from Turn 15 in to Turn 16. If you’re able to get the seat higher tier, you can look back to Turn 4 as well. You can’t see the cars in main grand stand from here though, but the giant screen is right in front so that compensates for it.
Here you get a good view of the car entering the slow corners T5, T6 & T7 (this was where Massa n Hamilton kissed) and see the drivers muscle the car through these technical corners (and kicking up dirt when they go off track) and then see them zoom in turn 11, 12 & 13.
If you want to see F1 cars at top speed, this not the place you want to be in. Also, sun will in your face all the time ;)