Everyone mom that I know uses/used the removable infant car seat. They are worth more than their weight in gold. For the first few months of life, your little monkey will spend most of his or her time sleeping. Think about having to pull the sleeping infant out of the comfy carseat EVERY time you go somewhere. Think about driving around for an hour in an effort to get your fussy bundle to fall asleep only to wake him or her up when you pull them out of the car seat. It's SO much easier to just pull out the car seat with the tug of one little lever and let the angel sleep. With a baby, sleep is GOLD and in my experience, you will quickly learn every trick in the book to keep from waking them from that peaceful slumber.


and wow that sounded really preachy... but the point is that I think that you would probably be better off getting the infant seat with a removable base for now and switching to the Britax later. I switched Austin to a convertible rearfacing seat when he was around 8 months old.