Unfortunately, many apps are very sluggish, crash, can not start and so many Softwarbugs. LG has changed the motherboard, of course, brings the software problems with anything.
Frequently and not reproducible, a clearer Tonlatenz, which can not be adjust it. Not even the broken remote control could replace the technician.
For this purpose that a UHD TV can accept no UHD / 4K signals has already been much written in other reviews.
So to sum it too much money on outdated technology that is not working.
Positives: LG takes back the unit.