For the actual product: The seat mats are really hot on stage 2. And after about 4 minutes. Hard to compare series heaters. Stage 1, however, is quite pleasant and more "casual". The cable lengths are okay, so that installation of the switch in the center console is easy. In Level 1, this light red green and at level 2.
The manual is good enough to take notes to write it. For more she is not good, unfortunately the best will :)