One star less, which I rarely do, because here Geuther has saved in the wrong place: the lower doorstop.
On the one hand are the small screw and nut holding the stopper, too short, so as you have to replace the screw.
On the other hand, the hole has been drilled too close to the edge in our model, so that the stopper can tilt ... With the result that the door no longer rises, as it is always blocked (naturally happens when you in the house above is the child suffering hunger just crying on the arm, and the long-awaited important package in the mail from the woman who rings just below at the door).
It took a while until I realized where the door is now blocked, and that the bottom and not in the mechanics inside. Fortunately verge before I had the door completely smashed by excessive pulling ("Treasure Remember your blood pressure -! Watch first, then think, and only after that exercise forces" still called the worried wife in time).
I pushed between the door frame and a stopper wedge made of match at the right place and now the part no longer tilts. The door is always on easily.
But perhaps the problem is already solved at Geuther, the part we have now for more than a year in operation.