The Presenter fits comfortably in your hand and the buttons are easy to press. The fact that they can not be as close to each other they were during the presentation also not be confused. The laser pointer is even better and stronger than I thought. In addition, the Presenter is powered by standard batteries, which you can get anywhere. This leads to really low costs. Upon receipt of the reach and I had no problems so far. I am completely satisfied with the device.
Edit: I use the presenter still and had no problems until today (Dez.2013)