looks stable - but has real "quirks"

I thought, just take the box with the best ratings, which is probably stable.
First, the delivery took longer because the box was apparently out of print. Then the box came after 8 or 9 days.
The first box that I received was defective: an upper closure element was canceled.

Amazon has as always solved everything top. The spare box came faster than I could return the defective box.

But, oh horror, in this connection, another element was not poured properly, so that it already when
Installation abknickte.
Actually, you could scrap the need to return again - but I needed the box urgent and so I
with its own "board means" connect tinkered.
This cushion box is not worth the money, because the manufacturer apparently in pressure saves plastic!