After doing some research last night and this morning, I decided on the Graco Nautilus. Here are some of the reasons why:
It has the highest rating on Consumer Reports in the convertible/booster seat category.
Ari can use the harness system until she is 52 inches tall or 65 pounds. Then she can use it as a booster seat until she is 57 inches tall or 100 pounds. In other words, this is our last car seat for her!
It is super easy to buckle and unbuckle. It does not seem to get stuck like the Evenflo in Abuela’s car does.
It looks like adjusting the shoulder straps may be a bit time-consuming.
It is bulky and on the heavy side (20 pounds).
I decided to go ahead and get it because we won’t need to adjust the straps often. Also, we have one kid, maybe two, at most, some day! Even if we have another child, we can accommodate two seats in the Corolla easily. No room for the grandmas, but that is ok!
I lucked out! I went to a store to look at a few car seats. It turns out they were giving out 20% off coupons! Yay!