I always choose my flights/routing then have my TA submit it to O so far we have done NON STOPS only the deviation fee charged
but we always go in a day or more early anyway
I will book our own in some cases as we prefer BIZ class when possible
loved the A/C lie flat seats AMS r/t it was worth the extra price to us
I am too old for Econ on long haul flights LOL
Some do not like A/C but I have not had any issues with them