This is my second Britax and they both are in my car. My son enjoys his Britax EVOLVA he started from 9 month till he will be 8 years old for sure (now he will be 3 years old). This one is for my daughter who is 6 month old. She loves it. I was very concerned about the high of the seat and I have Mazda 3 Saloon year 2000 so it is not a high car at all. But it fits well and there is still place to sit for someone in the middle between these both car seats!!! It is tricky to put the baby in and take out but I managed to put her in on the second day when she was sleeping and she didn't wake up so I am sure you will find the way. Also now she can see outside and it became much more fun for her to ride in the car than before! Anyway it is more easier to put her in and out than her previous group 0 car seat. The quality is very good as you would expect from Britax. I love that you can use it in rearward facing and afterwards in forward facing. I tried my 3 year old son in it (he is tall for his age as well) and he still has space to grow so should fit a child of 4 years surely. It is so good idea that you can use it rearward and forward facing afetrwards. I love, the infants insert, I don't think it is cotton but is very very soft and comfortable the only downside is that she will outgrow it in 2 weeks so by this seat earlier so you enjoy it longer. Baby will love this seat much much more than the group 0 - that is sure!!! Feels very secure and safe. It is Britax so I don't doubt the safety when it is installed correctly. Hopefully we will not need to check it though:) My friend saw my both car seats and she bought Britax next day. So I totally recommend it if you don't have Isofix in your car. But for Isofix users you are lucky to enjoy the new Britax SICT (Side Impact Cusion Technology)!