First time I see an electronic device arriving in a simple plastic bag. Either it was used from a return or it was indeed inferior even to Chinese products.
You buy from Chinese sites for 2€ and it comes with a box and instructions. This one doesn't even have a model written on it nor do I know how to set it up. It didn't work with guides from the internet.

Flawless, small, sturdy. Only 10'' for the copying process. Its function in relation to its price is the best. My locksmith asked me for 20€ for something similar. I bought 2 and will order 3 more

Update: All the following still apply, it just started to not work as well as before. I stand with the machine outside the first garage door, the first one opens and the second one doesn't catch within 10 meters and I have to go further ahead. When I'm leaving and I'm backwards and the dashboard of the machine is not surrounded (because the remote control is on the key), it catches from outside. It's not a battery issue. I have changed 2-3.

I had bought it earlier and now that I needed to copy for a sliding and an opening one, it easily took both codes and then I copied them to a second one, from one to the other.

Now that I'm using it again, it started to not catch the buttons and it needs either force or a certain way and I would sit outside and wait for it to catch. However, I opened it and sprayed it with a contact spray and it catches like new. So maybe with excessive use, it may start to not catch very well.

I had purchased 3 Superior Simple 4 button controllers in 2015 that still work perfectly. I have a garage door and 2 shutters. As one controller broke (got wet), I bought two more to replace it. 1) It is bigger and less convenient. 2) and more importantly: No matter how hard I tried, it cannot command the 1 shutter. It can control the other 2 and work normally. It is understood that I am programming it correctly and it is understood that the old Superior controllers can control it. Therefore, it is an outsourcing of a different controller that I wrongly trusted again. This way, you don't create branding...

I have purchased 3 identical devices so far, and with great ease, I managed to copy the remote control of the autotech SM50P fixed code to 433.92 MHz on all 3 of them.

I bought 2 devices. None of them were able to copy the SEAV Be Happy remote control with a single code at 433.92 MHz as claimed by the manufacturer and the user manual.
I am sending it back for a refund.