We're finally going to install the convertible car seat today (after buying it on January 1)! We have still been using his infant carrier, although, I stopped actually taking it out of the car a few weeks ago, since it's just so heavy with his 20+ pounds in it. It's rated to 30 pounds or 30 inches, and we're running out of head room. Here are some pictures from our test ride in the living room this morning: