I saw that some people had also acquired along the same camera as me.
This cover is not bad but not necessarily super adapted to the device. When I extract the device from the cover, the space cleared by the zipper is not enough forcing me to hold the device on the edge and sometimes (often) to actuate the switch of unit and take out the lens (which is annoying in the case). I also fear of damaging the hull of the camera at each extraction of it from the case.
Otherwise, the case is entirely made satisfactory quality, especially considering its price. A book may be for smaller cameras, thinner.