The olympic stadium is a superb venue for athletics, but not sure if it's gooed enough for football / rugby. Avoid the upper tiers behind the posts, they're miles from the pitch with an awful view !
This is a Band 5 seat and thus one of the cheapest in the stadium. Access via Gate C and is the furthest point away if being accessed via Westfield Stratford or Stratford public transport.
I hated this stadium. Everything is too far away and in this section I had to climb up 3 flights of stairs to get to my section from the concourse (same story every time I wanted to use the gents or get food/beer)