I've sat in various areas of the East stand over the years, tending to sit towards the Cooper end in recent years. The best days though were when you used to get a right good atmosphere at the very end of the East Stand and it was absolutely jam packed on many an occassion. This wass in the era when Aberdeen were beating us 6-5, Ayr knocking us out the cup, Hearts game getting abandoned and beating Celtic 3-2, drawing 3-3 the following year. Really fond memories in terms of atmosphere.
Between the ages of 11 and 13 I sat in the Cooper, only really enjoyed 1 half of footnall though as the view wasn't great when we were attacking the South Stand.
At the St Johnstone game the other week, I returned to the Main Stand for the first time since a cup relay against Ayr in 1992. Fuck it was dismal, worst 'atmosphere' I have ever experienced at a football game. If I had a season ticket in there I'd have lost complete interest in fitba by now.