I have a BabyJogger City Elite (which isn't the same as the one you mentioned obviously) but I am a HUGE fan! Especially of the quick fold....it's the bomb!

My DS got to a point where he just wouldn't sleep in his pram anymore too, so maybe just take into consideration whether you need something that actually accommodates sleeping.
He will sleep in his bertini coz his head isnt directly in front of me and he cannot reach out and touch me, The bertini is just too big for my boot unfortunatly