I put this amp in my car about 5 months ago and it is already broken. The sound went away and the unit emitted a burning plastic smell and produced a lot of heat. For the time that it was working the sound quality was pretty good. I rarely turn my music up very high, and the amp was in the back of an SUV so ventilation was not an issue. The build quality is very poor so i would recommend looking into a name brand unit.
I found the actual unit easy to install. However, I found some of the hook up not clear as to what bridged speaks meant. Once I figure that out I was very pleased with the unit and would recommend it to even a person with not installation experience.