On the whole, the terms in order. Unlike my heating pad Bosch, which I have at home, however, the heat generation is rather weak. Also permanently installed seat heaters (eg Skoda) are at least 3 times as hot. I bought the seat cushions because of the good reviews, but they are not 6 stars Unfortunately worth.
The fit for W168 models (A-class) of Mercedes they are not suitable because they do not adapt to the seat shape and front can not fix. For the seats, but the manufacturer can not here. Nevertheless, they move through this fact over and are then twisted in the seat.