This was a Christmas gift for my son who loves his music. The budget for this purchase was low so I was kind of fearful about the quality for the money spent. Lanzar reviewed decently on other sites so I decided to try it. Packaging and shipping was well done. The subwoofer speakers and enclosure seem solid and perform better than expected. The amp has not had any issue powering the subs at this point. The wiring kit seemingly has quality products in it and we had most everything we needed to do the install. The instructions were a little lacking in the info department, however, someone with some general car stereo knowledge won't have any issues. I would have liked to see an external dash power control switch included with the wiring kit as we ended up adding our own. The head does control the amp, however, there is no on/off power control unless you add it yourself. The system has been in for a week now and no issues. My only concern now is longevity...we'll see!