The negatives for me are that the headrest covers are for children's cars and not normal-sized ones, that the rear cover does have a zipper, but it is one piece so to lower the rear seats separately you need to open the zipper (and who is going to do that every time), it does not have holes or a design for the rear seatbelt slots, and finally, it does not fit properly with the hooks on the back of the rear seats unless you completely remove the rear headrests and leave them off. Especially the last two are also a safety issue. And one more thing. The front pieces are one per seat (except for the headrests) so at the corner of the seat there is a gap and light and dust get onto the seat. It's a pity for the 30 euros. The extra star is for their nice black color which gives a different vibe to the vehicle and they don't smell (I haven't gone through summer with them yet to confirm with the heat, but so far so good in this aspect).