Qualitatively, the lamp is properly. It is all well packed so that during transportation nothing has been damaged.
Installation is also only as "A. Koch" already addressed basically like any other ceiling lamp, you have to be careful with the wires a little. Because these are very easy to shorten, however, it becomes difficult if you want to hang a little lower yet again the lamp, but this also works after a short "test phase".
Currently I use only 2 lamps in the luminaire, but also so that the room is sufficiently illuminated.
Actually, I wanted to use LED bulbs in the lamp, but I have not found a dimmable lamps at a reasonable price.