Plastic garbage. Unshielded cable, so a lot of noise. If you pass RGB signal, the image quality noticeably drops when connected through this. Also, while the sound doesn't have a noticeable quality difference with one device connected, it produces a quite loud hum when a second SCART device is connected.

I bought 1 and it was defective. I immediately requested a refund. If you are going to buy, go for something more expensive.

Although a bit bulky, it seems to do its job well. The buttons are independent with a click reset each, meaning that all of them can be selected or some of the 3. In other words, if you need it to only take one source (like me), you will need to check which of the 3 buttons is pressed so they don't get blocked. From what I understood (I didn't verify it), it works bidirectionally