Not a very realistic Sim for a commercial airline operation. Push push push until you start making mistakes. I got the gig more by luck and an excellent FO with me, than anything else but many good guys will fail this. Group exercise total waste of time.
I did not find the sim all that unreasonable. Is it realistic for a commercial airline operation, no, but it is effective at seeing how you react to stress. I think that is what they are looking for more than anything.