I've been using it for about a year by connecting it to a TV (HDMI) or AirPlay, but there was no problem with its operation. I used only HDMI / WiFi / Bluetooth for input, so I haven't tried anything else. I also used only 2ch of LR for the speaker terminal. The housing looks like new because it hasn't been touched since it was installed. Almost no scratches or stains are found. Accessories are also available as follows. --Remote control (with batteries) --AM antenna --FM antenna --Microphone for YPAO --Instruction manual --Startup guide