Perfect choice for travelers!
I researched for weeks before purchasing the Diono Radian R120 for my oldest daughter in early 2013. It was the top of the line in safety then and still is now in mid-2015 so I have purchased a second for my second daughter. The seat folds up to allow for slimmer transporting, is Airline approved, higher backed to allow for longer rear-facing (proven to be the safest position for children!) and it's slim enough to allow 3 Radians to be used side by side in a backseat. I highly recommend this seat! (Also purchased the first from Albee Baby and received very quick free shipping.)
ProsHigh back for extended rear facing, fold up seat for travel, airline approved, steel core
Best UsesExtended Rear-facing, air travel, multiple children