A little more detail:
Unlike some more expensive brands can be eg when mounting on the window frame (rigid plastic siphon without adjustment of depth) and also during assembly (very cheap parts / processing) do not expect the level / the convenience of a 50-plus blinds. This Shades / brand you can buy at the hardware store from the pallet, so it should be clear to everyone what you get for your money.
Installation is simple and the reconstruction of the chain to the other side (eg, away from the window handle) is easily possible to simply reposition chain run.
My biggest gripe: The so-called "manual" is disastrous. If you've never installed a double blind is first how the Ochs vorm Berg (so I in this case). Much too brief, bad pictures and a total of just flawed, why only three instead of four stars. The manufacturer homepage is unfortunately no source of wisdom diesbzgl.
With a little Youtube video installation from other (more expensive) manufacturers look and think the blinds then hung after 20 minutes, however, who has two left hands and the only "manual" in front of him, who might get big problems.