I bought a total of two of these and, purely functional, they work well. The big problem is that you hear a constant high-frequency sound that is very annoying. It is therefore a classic coil whine or "spoltjut" one hears. My first copy was slightly worse than the other but 2/2 sounds so I guess the bad design and not two Monday copies.
If you plan to have the PowerBaren connected in a room with normal sound image, it will be guaranteed to be heard. For example, the bedroom is just forgetting. I do not know if you can make the connection to the bad components but personally would pull me to power or charge valuable electronics. In particular, I would be worried to leave this connected and unattended.
Additionally, I also have Allocacoc's Powercube with USB sockets and this is cluttered.