It is a completely other world than the airline world. Like mentioned before, attitude towards the job is very important. Some love it, some hate it. Be prepared to be flexible and to learn new things.
I've seen some airlinepilots that took this job for granted because they thought they would have the job on the challenger immediately because
they flew a 767 before. Well it is not working like that!!! As a pilot you are the ambassador of the company and a company wants to see that.
Anyway, good luck.