What did you look for in a combination (harness to high back booster to no back booster) seat? Starting to look at them so I know what I want before the baby outgrows her infant seat (she will get the nextfit and the toddler will get the combo seat).

I know I want a high height and weight limit on the harness, but since both my girls are just under average size, I'm not terribly worried about that. Ease of installation, with latch and seatbelt? No rethread adjusting? Lightweight or narrow?

We currently have two cars but they are in my car 90% of the time so we only have one set of car seats. We do switch them occasionally on the weekends so something easy to install is important. Do I care if it's heavy? Just wondering what people have found to be the most important features.

Also specific recommendations are great. I know people love the britax frontier but it's expensive and heavy. Since we only need one I am ok if it costs a little more to be exactly what I want, but if there is a cheaper one we will like just as much all the better.