Too high reaction time

The reaction time - even when completely off additional functions (image noise reduction, increased image sharpness, etc.) is the reaction time is still too large in order to be able to reliably with the mouse on the PC works. It's annoying at very strategy games or first person shooters. HDMI signals from the Raspberry or a multimedia hard disk menu also come very late on the screen. (The most recent firmware version 4.29.2015)

The menu is reasonable and intuitively constructed somewhat sluggish - not to mention the few available apps all for such purposes should Sticks of Google or Amazon are used.

The picture itself is super (tested only on HDMI input).
The Active Shutter technology to watch content in 3D has, in principle, only disadvantages compared to passive 3D technology. Especially I noticed flickering ambient light - including light - in the corner of my eye it flickers constantly. 3D is darker. Something blurred.
The glasses need a battery, are considerably more expensive to purchase eyeglasses for passive 3D technology (this television is only a pair of glasses included)

So if not interactive working and not 3D looks for this TV can be something.
All others should rather invest a little more.