For reasonable use in a small car it is very good. I put it in a Toyota Starlet and it completely changed the sound. But always with reasonable use, not to open the windows and wake up the whole neighborhood.

Also, the power cable that was included was quite thin and short. I will definitely need to extend it later so it can reach under the seat (from the battery on the left to the passenger seat because it couldn't go through the driver's side anywhere). (Note that I am a complete beginner in such installations).

For its price and for someone who doesn't want to lose space in the trunk, it is very good. Ideally, you should also change the source, so you can adjust it to your needs. Powerful sound, clear, with plenty of depth and power settings. I have it with a simple MVH 320bt, and it has truly transformed the sound in the cabin. Be careful though, because depending on the car, you will 'lose' space under the seat and maybe the rear passengers won't be comfortable with their feet. Personally 5/5

It's an amazing product for it's size and price you're getting a great sound. Placed under the driver's seat it changes the music experience completely.

Pretty easy installation, note that the chinch (RCA) cable is not included.

Very good woofer to complement my system, I would definitely go for something bigger but due to the space in the car (Mazda MX5) there is no possibility, but the result surprised me despite its size and watts. I should add that it's not for show-offs, I'm always talking about reasonable use.