We have fixed the grid on the one hand to the banister frame (steel) and on the other side of the glass panel of our railing. Also is not on the ground, but maintains rock solid yet.
The only point which is not bad, but consider: you have to watch with the door open on the bottom interfere carrier, in which the door after closing locks (necessary for security against ease of opening and stability). About this one can easily stumble at runaway.
Take it now for 2 months and have still bought a copy to protect our other stairs.
Negatives: There are in fact only have an English assembly instructions. You get it even so there, but a German-language instruction would be entitled to expect.
