Unfortunately, this part is quite expensive and for the proud price should in my opinion the rail for hooking and its counterpart be a bit high and for example made of sturdy aluminum instead of plastic. For this more than 3 stars. When rolling back the grid caused by the way rather loud and unpleasant noise.
Installation was quite tricky, but that was certainly the fact that we had to assemble the whole thing between a wall projection with baseboard and the sidewall our kitchenette. But you should plan definitely some time.
Overall, the grid but so far fulfilled its purpose and is currently simply the only of its kind. I would therefore buy it again.