To be fair, on the Cambridge Friday Night Ride, about the only weird thing was the egg. You expect plastic cheese, but everything else is fine. It would have been nice if they'd been serving the full menu rather than just the breakfast menu, but the coffee was OK, it was warm, friendly staff and decent toilets (despite a drunk chap throwing up his guts in there, no doubt after too many sangrias on the plane).
It worked quite well as the halfway stop especially bearing in mind it's the only place open. Sadly, apart from a coffee stand, there's nothing else available in the airport terminal.
A quick heads-up - another McDonalds in another part of the country might end up being used next year.