FWIW, I am a CPST (certified tech). I have and love this seat for my DD. I plan to rear face until 4 and she should easily make it there in this seat but she is only about 55th percentile for height and weight. If you want to rear face a long time and have a very tall child, I wouldn't get it since it's not as tall as other seats on the market.
It's really roomy, easy to install and adjust and seems comfortable. I love the smooth pull harness adjuster. I really don't have any complaints except that the shoulder pads are huge and we just took them off.
We were 2 under 2, now 3 under 3!
Team Green turned Team Pink with #1, Team Green turned Team Blue with #2, Team Green turned Team Pink again with #3
Re: Peg perego convertible car seat