I have no experience with other antennas as this is the first time I needed one, so generally the extensions were low. Also, I expected that in the center of Athens on the 3rd floor in a narrow area, it would not perform well at a distance of 5m from the opposite building. However, it works fine with only a few interferences, but about 95% stable and clear signal quality. It is located next to the window, stabilized with its magnet on a metallic surface. It is very nice and easy to make small adjustments if needed.

Disgusting and awful! It doesn't capture any of the HD channels as it claims to!
I bought it thinking it would be better because it says 4K and because it is more elegant than the other one I had, which was like a steering wheel, but the old one worked better compared to this one!

I bought it to replace an "old type" one with the classic black plastic without any reinforcement that doesn't fit into the socket. I thought it would have a better signal and it is also much more beautiful.
Its signal was non-existent, only if I almost stuck it to the window it would catch a signal for a short time, not consistently.
Also, the cable that connects the socket to the antenna component is less than 1 meter long.
A very bad purchase... Look for something else.

In a 3rd floor apartment, and at a distance of about 2.5m from the window, this is the only one that caught all the channels. Other types like matel, tzs, first austria, did nothing and constantly needed adjustment to "look" in a different direction.

Tested in a semi-basement apartment, and again all channels have full signal.

I would buy it again without hesitation.

In a ground floor apartment, the TV is close to the window, but it doesn't catch anything. I changed all the positions, all the possible rotations... nothing. Oh, only when I hung it outside the window did it catch a signal.

As soon as it was connected, it picked up all the channels regardless of where you place it. Perfect, worth its money

Fantastic antenna! It has a built-in small amplifier (like a matchbox), which can be powered by the TV's USB. The package includes both the USB cable and a USB power adapter (like a mobile phone charger) if you want to power it from a socket.
In Petroupoli, where I installed it indoors (ground floor), it picked up all the channels (including HD) with full signal. I recommend it as a solution if you don't have an external antenna.

The antenna on the first floor does not catch at all in the center of Athens, and on the fourth floor it catches perfectly. The problem is that I wanted it for the first floor and now I am looking for another one