About time there was some serious competition for Servisair - they are a pile of s**t!! They always seem disorganised and unprofessional and have to consult their supervisor before giving you an answer whenever you ask them something.
As far as open seating is concerned, it is done to speed up the boarding process. If you notice, whenever an FR flight is boarding there are no pax hanging around, they get on board as fast as they possibly can, minimising time on the ground. It has nothing to do with providing crap service but simply a method of stopping the competition of who's last to board a flight.
Thank Goodness that we don't have to face Servisair anymore.