I just booked a flight (for a friend) on the JetsGo site :-
http://www.jetsgo.net/en/index.shtml
it was very simple and fast. Considering the low price, It also allowed on-line seat selection.
E-mail confirmation was sent to me before I had logged out of the site.
I have no idea what the flights will be like, but the on-line experiance was A+.
Stewart