So this guys are still around? Questionable owner already 10 years ago. Did that guy move on or is it still the same?
point 3 from a very former collegue of mine - forget any regulations. YOU are their BITCH. If you can live with that(I can't, I respect myself to much for that) you should be ok. Money(isnt it always for bitches ;-) ) is fine, of course.
Atmosphere, as someone who did that kind of job for a while depends deeply on the owner(which is Global jets market) and his(more importantly) PA. And your other(usually) 3 collegues(sometimes the GA market is kind of a snake pit with collegues that you do not want as your worst enemy).
I returned to airline flying. Much more honesty in that and if you got a crappy FO(and there are more and more around of this breed day by day, my god, is this the future? And they WILL progress to Captain so it will be your problem most likely as well in Global jet, don't worry)) it will be for 1(!) day. If you go for this kind of job you might end up with horrible collegues(and the worst ones I personally met have been in GA, no discussion about that) for the rest of your time with that operator.
Think about it. Very well! Viele Grüße nach Deutschland. Überlege es Dir -SEHR gut!