They are fine as long as you realize what you are getting. As KnuKonceptz said, they aren't terribly advanced. I would expect that 1000 watts to be more like 250 RMS at any kind of reasonable distortion level. The one thing I have to give them credit for is durability. My brothers friend had one in his car that ended up in a puddle on the floor of hte car after a large rain storm. It stayed that way for days. As soon as it was dry, it worked perfectly.
