We can connect at this point only the numerous positive reviews. This child safety seat is top handles and very easy installation and removal. Whether now or Isofix is not required, both variants are possible without major problems. We had ordered the newer version of the X-Fix, but we have deliberately opted for this variant. A direct comparison is namely we noticed that except for the additional side impact protection in the form of "plastic" ears, the entire seat is completely identical. Since we would like to assemble in our car back three child seats, we opted for this seat.