After much research and reading many good reviews, we decided for the Cybex Sirona. Unfortunately, our daughter was 15monatige when buying not there, because otherwise you would have noticed us, which can not remain a child really long time in this seat. He is simply too short backward by the safety bar! Our small sitting with your knees bent. I turned me with this problem at Cybex, the answer is worse than useless: "The child can ride in the seat and forward" and "if necessary, it can put your feet on the safety bar". Very funny! Why do I buy a Reboarder and how long you want the child to stay in this impossible posture in the seat? I'm also still the ADAC and Stiftung Warentest write for test scores "good". That can not be true EVERYTHING ?!