Installation is simple:
Simply connect the box to the TV, to return the network key, and everything works immediately without particular installation. The main software is preinstalled, ready to use.
This is the Android (4.4.2 KitKat), so you have access to all applications of Playstore.
Small regret, I have not found how to display the main menu in French, but there are just a dozen recognizable icons, and when you go to the Android menu, all parameters can be managed by French.
I have not tested the playback 4K files, but the files in HD MKV are read without problem, where my pc (entry level, 2 years old) train like crazy.
The KVM remote control is well done, although the Airfly system is a little disconcerting at first. The QWERTY keyboard is: I think that's a good thing, since the planet uses this format.
I highly recommend!