hi i worked for citiexpress last year after waiting a year for my training course to start.
good luck to you i only stayed 4 months because i hated it so much.
i have since moved to a better company where i am happy than i ever was there. the training course was hard because the trainers are very strict but i made great friends there. also standbys do not exist you dont get them on the roster and the you work loads and after all that the pay is rubbish.
i do hope you enjoy it. i think there is an airline out there for all of us. ba mainline is better paid though why dont you apply to them.
good luck anyway