Excellent signal, although the build quality is very simple, don't expect anything crazy. It is very easy to install and requires a coaxial cable with an F connector (screw-on) from where the antenna starts in the square plastic box and terminates at the other end with a simple male coaxial antenna plug. I didn't see any distortion in the image even in the rain. It works like a charm!
Only time will tell its durability against oxidation, etc.
For now, 5/5 even though for its value, around €10, it is very okay.