Same with Sobelair.
Sobelair were exactly the same, back in 2000. A few pleasant and helpful guys, but largely a crowd of self-considered "expert" operators who were unpleasant to share a crew room with. And they had the audacity to scribble "AMATEURS" on our folders, whilst we were operating flights for them out of BRU. Childish behaviour.
Strange really, but the Belgians are welcome to their own "ace of base" operations. We put it down to a national sense of insecurity in their own abilities.