For the price you get a super-compact keyboard with good (for my feeling) writing experience that does not rattle. The most important function buttons are at the top, not overloaded - everything you need. The mouse falls for big men hands a bit too small, but otherwise works well, the mouse wheel can be operated very well. Installation is very simple: batteries (are included), USB receiver pure - done. The whole thing is perfect eg for notebooks, since no large space requirement. 5 stars for the good price / performance ratio!