I have just completed my first transactions with The Music Room and I couldn’t be more pleased. I bought a used network switch for a thousand dollars less than what other sites were selling it for. I also bought a used usb cord and used Ethernet cord for 50% off the former and 75% off the latter.
Their customer service is great. As part of the buying process I returned an item and te refund was in my account within a few days. My purchases were delivered inside of a week.
I have not sold them anything, but my impression so far is they are a very good company. And they do have to make money.

