In principle, I would probably give the keyboard 3-4 star, but for me there then too many quality problems:
1. Lamps of illumination lights visible below the key - that would not maybe bad, but
2. the light on the keys is compared to a Logitech Illuminated K740 KB considerably darker; namely so dark that it does not help much in bad light, especially as among the key brighter than on the keys
3. a beautiful spot: a look at the 3 button in image; uhhh .... yes, exactly! Here we have again an R
4. the attack is basically not bad, it go to me but even occasional letters lost (error in this report please ignore)
5. The lighting of the Caps and Number Lock indicator is also too dark to me.
These disadvantages then weigh yet so heavy that despite some positive features only two star forgive me. Positive for me:
1. a simple, chic and sleek design
2. compared to the above-mentioned Logitech Illuminated Keyboard is a standard layout
3. backlit buttons
4. processed basically not bad