I should say, though, that passport control was much better coming back, every desk manned.
Out of curiosity, before I went I had a look at the "book lounge" section on the airport's website to see what they would charge but it said that it was closed at the time I wanted. At the airport I had a look and it was open as usual. Not that I went in; it's one of the worst lounges out there, not even a plate of cornflakes for the early flights.