Contrary to what was announced this car seat is designed for children from 0 to 18 kg, with a possibility to put the seat back to the road for children up to 13 kg, and facing forwards from 9 kg. The position back to the road being by far the safest for children in crashes, this is the reason of my purchase, plus the fact that the system is not Isofix attachment and therefore simply with safety belt (my car is quite old). The seat is quite large - so be careful with cars 3 doors - but fits very well on my Clio May 2 doors. The Britax website offers to check the compatibility of the system. Installation is fairly easy strap adjustment is a bit more complicated to understand, but after a half hour fight in his living room everything is understood easily, especially with the video site! Comes with an insert for newborns, I did not use because I bought it for my 7 month old. I put 4 stars because the seat does not come with a lens hood which is indispensable for the position back to the road - I had to tinker because it is very difficult to find a lens hood that fits directly to the car seat. The price is very competitive and from what I read in the crash test results are satisfactory.