Remember to get some EGP (US$5-10 will be WAY MORE THAN enough). The waiting area outside BA office is OK but the seat is just OK. The problem is the lighting (stadium "orange" type) and it make reading books very hard, also it maybe cold when you just sit.
The cafe offer hot/cold drinks, snacks and some strange snadwich, the seating is nicer and use FL tube lighting.
for your reference: tea/coffee is just EPG 2 or so and snadwich is EPG 4 or so...