Had a txt this morning saying router on its way, great i thought, just about 20mins again post man knocked and he as the router

that was quick i thought, so all ready for the change over to PN on monday morning.
I think this as been talked about but is there a 10 day training of FTTC like ADSL as, the reason i ask is i'm thinking of swapping the router to a Asus RT-N66U, but i think it is the best way is to use the PN router first get up and working, but i don't wanna swap out router and it'll mess my 10 day training.