Just fine!! Sometimes it needs to be moved a little more to the right or a little more to the left to get a signal for the respective channel...but not always...it has a magnet that "sticks" to the TV...I have bought three.

It didn't catch anything despite changing positions and repeated scans. It's not suitable for indoor use. At least it was cheap.
First floor with apartment buildings around, of course, but if there was nothing, even a simple mesh would have worked.

In the digital HD channels, there is no significant problem, but unfortunately, in the regular channels, it does not produce any image at all

Apart from the fact that it does not have its own power supply, (fortunately they mention that it requires power), the performance it provides indoors is slightly better than a regular cable...
If it is ever tested outdoors (it was not purchased for that purpose), I will come back with an update...
Waste of money...