This is the third time I have purchased one of these systems. This is not a top of the line system, but is a good value for what you get. I use them in our small satellite offices to provide ambiance and sound screening in the hallways and they have worked flawlessly. We have had one in place for the last two years and no problems. Build quality is fairly cheap, with light weight metal used for the receiver unit, but that is not an issue considering that basically amplifiers and circuit boards are getting smaller all the time. It has good features and inputs for your choice of source material. Overall the staff at the offices have been pleased with the system sound, and ability to customize the volume in areas as needed. The installation is pretty straightforward for any accomplished do it yourself person. The volume controllers do not fit into a standard plastic old construction gang box, so you may have to be creative with installation.