Wasted potential. Replaces a normal level only in some areas

Actually, a great device. Have it for a year now and an apartment renovation in use and it has helped me a lot. It's light and the laser beam passes through the whole room. To mark ideal to drill holes in series on the wall.

But the more you use the device, the more drops to the potential gave away.
On Raufasertapete it is, for example, for very difficult usable as it slips over the Huckel and wobbles. Since then you have to press right with force against the wall. Why would you here can not do, for example, "Piecker" at the bottom, that dig at the ground? Especially woodchip is by far the most common wallpaper.
The next annoyance are the tiny measuring tube. They're the main purpose of the whole device, why do you do it then so small that you can hardly recognize whether the bubble is precisely in the middle ?!
Finally me still annoyed that the device has only one straight side, and everything else is beautiful "stylish" rounded / curved. What looks chic, only benefits me not much, if you want to bring the machine to an existing line. Why can the device similar to the good old spirit level not just make simple cuboid? The normal water level does not for fun like this, but because put decades of experience in production design it.

Summary:
Nice additional helpers, but replacing a normal water balance only in certain areas and by no means complete.