does anyone have one of these on either classic or linear chassis? how practical would it be to lift carrycot off to take into house, then fold chassis? I like the pram but have a narrow doorway and hall so this is only way of using a "proper pram", other narrow travel systems and pramettes dont look as robust for the amount of walking and shopping etc that i do, (dont drive and live in a town). Any other pram suggestions welcome.