we have narrowed our choice of travel system to the Bugabloodyexpensiveboo and the Mothercare Mychoice. As far as we can tell, the only difference is that the bugaboo has a rigid, flat carry cot base when taken off the chasis. Is this important? we were told the mychoice cannot be taken off the chasis with the baby asleep in it as it does not lie flat. Confused dad to be???