It's fine. Everything you expect from a plastic shelf.
If you shake it, it naturally shakes a lot. However, it does its job just fine.

Fast assembly, without the need for any extra tools. It is a high-quality shelf that you can adjust the height with the legs it has. It connects nicely with a similar shelf if you place it in between, using the connectors that are included in the package. The correct height is not 165cm as stated. It has the same height as the QBlack 4080/5 model (173.4cm).