4 star product of the highest quality. Before, I had the keyboard PS3 Logitech, his problem: the size and trackpad. It is compact, ergonomic, has good battery life (like joysticks). The quality Sony is waiting for you, not one design flaw. It has no useless border plastics are glossy and matte on the edges above. The chicklet keyboard responds well to quick strike, the trackpoint is sensitive. The small LED indicates when it is on, it turns off alone like joysticks. It is compatible with all my bluetooth devices (PS3, smartphone, PC, tablet).
Its only flaw is its price ... but that's the Sony, there are the following quality!