Bass, like all other systems in the world, you have to turn down, otherwise it gets boomy. It can certainly be hard in itself, but that's not the point. Please note that because it is a front-firing subwoofer, it is only suitable in places with no obstructions to the listening position.
For the price of -200 certainly good, you can only have a filling effect if you sit in the middle (2 places) and with the right volume.
There is no surround effect whatsoever, so don't be fooled, but certainly a good enough sound that really enhances your movie experience! You will no longer want to watch movies without a sound system.