I'm a Grandma foster mom, looking to get a new infant car seat. Priority 1 is light weight. Other priorities are desire for no thread harness so picking up a baby at any hour of the day is less complicated, and ease of removing seatcover for washing is helpful. I love the zip off idea, but Chicco seems heavier than what I want. I drive a Sienna, and install would be behind driver seat. If anyone has ideas how to save money with coupons or other ideas, that's helpful... I've been looking at the Aria, but it's so new I would like practical reviews from users before going that route. Majority of our placements are newborns, so extended weight limit isn't important. Appreciate any advice you have.