We are very pleased with the seat. Cybex always delivers super test results with test victories from. The seat is equipped with Isofix totally easy to attach. The first week our child needed to adapt to the "block" in front of him to gewöhnen.Er had pressed the block in the business with hands and feet away. He now sits totally happy in it, raises on its own arms so as to slide the block to the seat and we have a very safe feeling with this seat.