Not used yet but very practical with its "cover" reversible for 4 different faces. Moreover the surfaces are taut and the golden surfaces well reflecting silver. The finishes are of good quality, in the long view, however at the closing of the strength that binds together the surfaces and for carrying case ... Folded format is a little big, but it's a purely subjective remark (40 cm on my side). Nothing to say otherwise, it's really convenient, especially for the price.