I am very satisfied with the operation of Bluetooth QWERTY keyboard. I am also pleased with the overall functional aspect but I find that the product has two defects: 1) It is not possible to use any USB plugs on the tablet, some of them are thicker and force in the tablet connector and are based at the back fold of the Logitech case ; 2) the back of the keyboard is a flat surface when the case is closed Logitech press the center button of the Samsung Tab Tablet S. These two minor problems are that the Logitech case as it is incompatible with SAMSUNG S Tab 10.5 tablet. Therefore at least put two thin soft layers at the back of the keyboard to the screen rests there without the tablet's center button is pressed in the closed position of the case Logitech Type S.