Hello,
Maybe we also hear what we will listen to because on 14m2 about basses we can forget, the distance from the listener is 2.5m is not enough for good bass.
I would experiment with 2-4 columns, but not too big, say 30-40cm in height, the rear ones may be smaller to stereo, they are not used and for films they are called so they don't have great requirements. Power supply from the receiver with the ability to turn off DSP.
This soundbar also has the advantage that you have everything in one housing, so you save space and a platform of cables.
I agree that it's worth listening to it, maybe go to a store and see how different sets sound, maybe take a sample of your favorite music because it is the sound that suits you.
Regards