The keys have a good resistance and the lighting is very adjustable.
After 10 hrs. One has then accustomed to the key shape ;-)
In the holder fits my iPhone 5s very pure and the app works very reliably :)
I found the idea of the "docking facility for smartphone / tablet" very good, but unfortunately, this solution is not as good as I imagined it would be ...
The problem with this thing is actually obvious!
If the smartphone or tablet is to function as an additional display, the display of the smartphone / tablet to must be.
Alleging that of the device's battery is very stressed and eventually it is out ...!
There is also no USB port on the plugs could be a charger to the keyboard.
In this sense, it is also not a "docking facility" but simply a holder for a smartphone or tablet.
The app (from the AppStore) connects via Wi-Fi, notice if you've installed on euerm PC gaming software from Logitech.
Conclusion
positive:
+ Einstellungsvielfallt the Optical settings as well as key assignment
+ Resistance and shape of the keys
+ Additional control buttons
negative:
- Only mount instead of "docking facility"
I hope I could you with this recession at your decision, help!