The product is great, habs '98 Focus bought for my BJ, evaluates the vehicle significantly and also the TÜV has nothing to complain about, which is really great! Unfortunately, the installation has taken some time, at least if you want to have it properly. If you are technically gifted and does not shy away from being 1-2 hours of work to invest receives a quite perfect result - sometimes just sat clapping is certainly faster, but is also correspondingly ugly, I think.