Regarding the key, I put only 4 stars because I'm a little disappointed in the finish. My SHIFT left has a little game, so it has some unpleasant plastic noise (like the space key "bad keyboards") which contrasts with the other keys.
All remains of good quality, but it gives a bad impression on the finish over the reputation of the keyboard, even if out of this keyboard looks pretty robust, and quite heavy (in a good sense) despite finesse.
For the rest, this keyboard is in any case quite lovely, with a real "down" strikes, soft and silent as on a laptop.
For information, it is all black (unlike the photo). The gray model / black seems not to exist in Qwerty.
Concerning my small concern, I maybe only came across a bad copy with slight defects (but this is minimal enough not to ask exchange, I will do with), and I still recommend this keyboard altogether for those seeking above all the striking gently.