From an engineers point of view, the aircraft is great. There are few crappy jobs, but aren't there always!!
The biggy is the time spent AOG for spares. MD, going though the troubles that they are, are unable to provide spares, and at present, no-one knows of a solution in the pipeline.
All the guys I've spoken to that fly them, have only praise, except when it is AOG!!!
"Mad as a mooing fish!"