Security is too important to me ...

... To save tuned, which is why I thank God bought this seat in stores. When I read here that the seat "belt, the hook is attached to as a the boot" without the used, pulls everything together myself!
Isofix always runs together with a stand in the footwell in front of the seat or even with a strap top tether which is attached in the trunk. If you have this device not in the car, this can not be used seat! The stand up as the top tether are there to prevent an accident that the springs seat! An incorrectly mounted seat is not only a major source of risk, but also in the event of an accident is not insured!
Therefore came with us in the specialized trade the sellers with the car and has assured that our car is suitable before we ordered it.

For fitting in:
We only bought him after our daughter was already sitting. Before, I was happy with my infant car seat that I could put in the shopping cart or sometimes the doctor just could park anywhere.
Realistically seen, I think, so about a year against the direction of travel is still in there. After that, he is just rotated. As is covered in any case the law in the new uncommitted period of 15 months.
The small sitting very comfortably in it, so far I could not even (with or without children) discover sounds.
Only the buckle is a bit difficult, but that's why to pay 200 more for a seat, just so you can drehn him to side, I then but not see.
A point deduction, because you have to buy the sun canopy separately. For what it is, namely, only a piece of thick fabric, I find it decidedly too expensive.