This is the first soundbar I buy in combination with a TCL TV. The bass is satisfactory. The power will cover the majority of users. Obviously, soundbars costing 1000 euros have more volume. At medium volume, it easily covers a 20 square meter room. In the music mode, the rear speakers do not play and personally I am not satisfied with the volume of the center speaker, but again, that's a matter of taste. For movies and gaming, however, it's just fine. You can adjust bass, mids, and treble separately, as well as the subwoofer volume and how loud the satellites or the center speaker play. The sound quality is at a high level. The three channels of the center speaker are not easily perceived due to the size of the bar (about 1 meter), but obviously all bars are like this unless you have separate speakers for the front right and left channels. Overall, I am very satisfied. You will have some trouble getting the subwoofer and satellites (they are wireless) to connect if you don't activate them in the order specified in the instructions. In three months, no disconnections.

Incredible speakers. The subwoofer and the rear speakers connect via Bluetooth to the soundbar (and the soundbar can also be connected with a good HDMI cable through the TV). Each one just needs a power outlet, of course. To enjoy their full capability, download the LG ThinQ app from the Play Store and select the AI Room Calibration setting. It will detect the room and the location of the speakers to provide better sound. Regarding the subwoofer, apparently some people either don't understand what it's for or haven't set it up correctly. The subwoofer is meant to produce the low frequencies and the bass (that intense and deep sound we hear in songs or action scenes and feel vibrating on the floor). And if you set it up correctly, it is incredibly deep. But it's not for high-pitched sounds.
I got it on sale from €600 to €450 and I am extremely satisfied.

Powerful soundbar but the sub is very lacking. Although on paper it is a very powerful system, the bass is very bad and there aren't many options through calibration to fix this. It is not intended for music. For movies, it's just ok. It can get very loud but you'll barely feel the bass. I'm coming from a Samsung hw-a550 costing 200 euros and its subwoofer was much superior. I managed to return it to the store and went for the Samsung q800f. Much superior even without rear speakers. Go for a Samsung of the same category without rear speakers and you won't regret it. You can buy rear speakers separately (Swa 9500s) to have true surround.