Hi, Hope you don't mind me asking what your expereinces have been with : Changing units: good or a waste of money. Some of my friends have recommended the over cot changer, others on the floor and some have a unit. Help!! Also, was thinking about getting the Mclaren Techno XT from day one. We only have a tiny car and I don't even drive myself, so need something light for public transport. Has this been ok for a newborn. Thanks.