Hands off !!! Connection system completely unusable.

We had decided on the shelf, because it made a good impression and the reviews were good.
After a somewhat fiddly assembly also made it a very good impression. After we had taken it to its final position, no longer.
Several of Butterfly compounds were alone already bent over the uniform, wearing 50cm wide and therefore unusable, since they no longer held.

Actually, it's a very nice heavy duty shelving, with scope for the shelves and overall very stable.
But through more than weak Butterfly connections it is still unusable because this twisting even at the smallest loads.