We’ve been road testing this seat and have found the following things:
It fits newborns well.
It can fit an average sized 4 year old boy rear facing
It’s so easy to install, this includes small cars and even leather seats
The sides are lovely and deep
No complaints of discomfort
So easy to swap between cars
No tether when rear facing
Prem doll (36cm) too small. Newborn doll (46cm) good fit
4 year old REAR FACING 4th slot from bottom (this slot can be used either rear, or forward facing). 2 slots still to go above his shoulders and last image shows the left over webbing when harness is done up at the 3rd slots with same child in the seat.