Most positives have been covered by other contributors. On the negative side we have planes that arrive at airbridges but their passengers have to descend via comparatively narrow stairwells to ground level (where are the escalators?). Then the already-mentioned trolley that require coins - a problem for most pax arriving from outside of the € zone. Then car parks with sometimes illogical numbering of spaces. Departing there is no large information board directly opposite from where pax come through security.