My first baby did not like dutout be in the hull, so I went quickly to the car seat. For our little second it's completely different. She loves to be in his shell and goes to sleep the same each time, so the purchase of the base has become essential .... and it really changes your life !!! Take affected much more convenient for the eldest among the nanny, shopping, staying with friends .... brief but positive !! In addition much cheaper than in specialty stores and sending more than fast and free !!! Amazon !! thank you recommend your eyes closed!