Bristol is a very good airport but they charge for baggage trolleys (however, the machines take credit cards so no need for change).
Several airports now charge for access to the drop-off zone — Luton among them, I think. I’m happy to pay for the extras I want: fast security clearance (£5 at Bristol and you go straight to the front of the queue — none of these slower-than-economy, so-called fast track lanes); baggage trolleys (don’t we all usually have roll-ons?) and; a well-managed drop-off zone. It’s much better than paying higher airport fees.
As for the worst major airport in Europe: Heathrow, obviously. They don’t even pretend to have fast-track at T5 most of the time (and when they do pretend, it isn’t any faster); the security rules are completely arbitrary; the staff are surly and; the whole place is run more for the convenience of retailers than passengers.