So I'm sure this has been asked a million times but tell me about these car seats. DS is almost 7 months, 21 lbs and 28 1/4 in. I drive a Santa Fe compact SUV and DH and I are both on the taller side. The seat will stay in the car. I'm definitely looking for extended rear facing and side impact protection. I want the seat to be easy to use but also comfortable. Anybody like one better than the other?