I have had the system u on for about a year and a half, and it is very bueno. I like that it is loud, louder than anything else i have heard in fact, and it doesnt bother me on long drives. Install took me and some friends a couple of hours, mostly awkward from using a floor jack; not too much clearance to work under the car. The fitment is good, not perfect, and if you really spend an assload of time you could get it pretty close to perfect. The sound is bassy until around 2500, then up till 4000 it is more agressive and has more defined tone to it. Upwards of 4k, it has a very clean and loud scream.