I found that on teamamp as well as all the other sites you will get a very good review of the sub, you hear all the bad adn the good, in fact, team amp may be more prone to hearing about the subs that break than thse that don't since people go there for help...I did nto have room for a ported set-up but for a daily driver I am fine (a lot of friends say they are overkill) but I like them, I am still breaking mine in a bit, i did 10 hours free air, and am now being careful with the volume (too bad my cars at home and i am at school) but everyday iw as using it the subs were getting louder. I put 2 in a boat at the marina i work at as well and they are great but some people want more spl...it jsut depends on your needs, if you ahve heard and like the pioneer go with it...