With 100g is one of the lightest cases (the original cover of Amazon has about 140g), but still seems valuable and robust. The surface can be wiped off easily and is resistant to scratches and bruises. The shell also feels very comfortable and by the rough surface is it comfortable to hold. The White Paper is firmly and safely in the envelope, but can also be difficult to re-refer (this did not really before).
The gray-blue is totally lichtbahängig, at first I was a little unpacking iritiert, as it has done in the dark gray low light, better light at the blue comes out but nice (see the photos 2).
Control of the sleep mode works fine with me. I also have no problem with the fact that the instrument reading goes to sleep mode, even though I have worked the lid all the way back. The magnet holds when not in use the lid very firmly, but can still be opened easily and simply.
From me as so is a strong buy recommendation, find nothing negative about this product (except that the color selection could possibly be a little larger).