Polly pocket,
Yes, It does matter who you work for, i'm afraid not all airlines are the same and the work is different between charter and scheduled.
I used to work for Astraeus, and we worked hard, had a our commission taken away each month, one month I was left with £5.00???????????!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!.
I'm happier where I am, I know I will be earning lots more, and the work is much easier, and less stressful than Charter, BYE BYE night flights to MALTA.
So, in my honest opinion it does make a difference, and just for the record when I started out, I knew one guy, who didn't like Astraeus and left straight saying it was not the airline for him, and he was an experienced flyer.