We already had two seats of the Roman series kidfix before I decided once again for this child seat. Compared with the older models (Trendline) I noticed that this new seat is substantially thicker gepostert on the seat and on the seat bolsters and headrest. Our Small therein feels comfortable and wants garnichtmehr out of the seat. The installation in a car with ISOFIX is very easy and fast adjustment of the headrest is a dream. Therefore I can only recommend buying this seat.