get one with build in sub, u still need some bass although not ground shaking to complete the package

The bass should be good enough for your usage, my TV came with built in 20W subwoofer also sounds pretty well, not groundbreaking but fuller.

next up, this bar u have chosen will just perform regularly in movies because the lack of channel, you don't get atmos effect, just left right and center. But if u only view Youtube and standard codec movie without atmos, you don't need speaker that support Atmos.

if all you looking for were just a better soundbar, I think this serves its purpose.