Ignore JD-nobody at SATSair likes him...
Just kidding!
He can give the best impression of line flying, and would be sorely missed if he were to leave for any reason.
All I can add is that I understand that they really focus on making sure you know that flexibility is king. You will never be kept out on the road into a day off (though you may occasionally be asked if you would like the extra day, but all you have to say is no), but they want you to understand that your schedule can and will change a great deal throughout your 4-5 days on. As long as you show that you are not a slave to a rigid schedule, and as JD said, come across as competent and professional you will do fine. They are very laid back (not to give the impression that they are laid back with the regs-I've seen the company interpret certain regs in a more conservative way than the Feds intend, and the pilot's decision is respected completely) and they need pilots, so relax and you will be OK.