We saw A10B on the lounge screen and without much thought decided we needed to go to the B concourse
Unfortunately T5 is (built on) a pile of sh1t in many ways. It quite literally stands on the site of the former Perry Oaks sewage works and so is something of an improvement on days gone past. If you think air pollution is bad today then think back to a summers day with a prevailing wind from the west......
Anyhoo in typically British fashion, the only way to get most (not all) of the BA operation onto the site was the modular satellite approoach as opposed to the more traditional piers. Hence 50+ pier served stands with four remote parking stands isn't a bad result. However as site access was very constrained and the building project was massively controversial and political, it's a compromise between what we'd like and what you can shoe horn in there. Conformance also means of you are not presenting your boarding card at security at ETD -35, you miss your flight. This is because of the epic trek needed if you need to catch the train but also means if you're on a domestic from the 500s you're still screwed alas.
http://www.ead.eurocontrol.int/eadba...2009-10-22.pdf
Biggest criticism is there's not enough room at security alas.
Having said that, if you know you learn quickly how to get past the shops there's an ocean of space and many quiet friendly corners where one can read or work. Even the tannoy announcements are strangely relaxing and old fashioned.