Although we have really liked the Sunshine Kids Radian65 Convertible Car Seat, this time we decided to go with a Graco Nautilus 3-in-1 Car Seat in Matrix because it was less expensive and shared most of the key characteristics of the Sunshine Kids Radian65 Convertible Car Seat.
The Graco Nautilus 3-in-1 Car Seat in Matrix has a metal sub-frame for strength. But it also has all of the additional padding necessary to make a 1-year old comfortable as well. To get the extra padding for a 1-year old from Sunshine Kids, I would have to upgrade to the Sunshine Kids Radian80 Convertible Car Seat. But that car seat costs $249. I think we would rather save the $122 to go toward something else for our children.
I hope that you find this helpful in your car seat pursuits.