The manual is to be clearly understood, however, I made during the assembly the supplied mounting clips problems. These L-profiles are attached, with which one can position the clip on the frame so that after grade is. The L-profile one breaks off easily after installation.
However, for me it was so that the clip LT after installation. Instructions sitting too high up and the shade thus did not want to engage in the clip with so much Hantiererei and pressures. After had been spreading throughout frustration after several attempts and I wanted to cancel the installation before, I asked my father to the whole thing to see.
This immediately noticed that the clips were too far up, to allow months. After the displacement of the clip down (These are a few millimeters!), The blind fitted immediately properly. Then you have to come first ...
The darkening of the blind power is not at 100%, but is still very good.
All in all a recommendable product without concrete stain.