I bought them to have on my second TV in the bedroom the OTE-TV (obviously it also works for Nova, DVD Player, and any device that has a Scart output).
Very good wireless communication between the transmitter and receiver, thanks to the strong Wi-Fi signal at 2.4 GHz that allows it to receive and transmit signals, even in remote rooms with obstacles.
The transmitter has an integrated thin cable that allows it to transmit both the signal and the remote control signal of the device we have connected to it (e.g. the satellite decoder) from any receiver, without needing to be close to the device-transmitter.

NEGATIVES:
Due to the fact that it operates at 2.4 GHz, any router that emits internet at this frequency (e.g. like the new OTE-Cosmote routers) causes interference with each other.
The Wi-Fi internet may not be visible, while the transmission to the receiver is done with minor interference, even though I tried it on 13 different channels of this frequency on the router to avoid them conflicting with each other.
The solution to this is to disable the Wi-Fi internet whenever we want to watch TV from the receiver, or to adjust the router to emit at 5 GHz. However, in the second case, some devices (not laptops) may not detect our network.
Also, each device has an integrated and non-removable Scart cable.