a) The set is not a 5m-set, but only a 140cm set. I have the information that you need> 140cm additional parts for distances not seen.
b) Each fitting needs 3 holes. Who has a Aerated or Porothon-house, so requires 6 special plugs. Alternatively, you can use smaller dowels that hold only in the plaster. Then the curtain should however be as light and little moved. Dowels are incidentally not there.
c) The instructions are correct and must be observed. Those who do not comply with the instructions and accurately reads and especially the Note "L" and "R" does not see the thread of the fittings will damage with a probability of 50 percent. The threads are rotated so that you sometimes have to turn upside down. So it is very important that the right and left fitting parts apart to sort and combine. However, the guide is very small and in poor Qualität.Ich they have been scanned and enlarged. The threads are of incredibly poor quality and seem to be made for a unique bolting. Who the "L" - overlooks and "R" markings and even purely rotates incorrectly, the set makes broken.
d) Material is incredibly cheap and definitely not classy. The illustration is in my view misleading.
I forgive 2 stars because I got solved my problem. But when I see the cheap-looking fittings and consider my queasy feeling when closing the curtain, I regret to have the set not sent right back.