I'm not against upgrading, I think you would really like the M60's or M80's in your set-up. However if you're happy with the set-up you have now having changed the setting to 'small' then by all means, enjoy it for a while and then think about anything else you might like to upgrade to.
I like your room btw.
One question though, did you route the wires from the right QS8 down the inside of the wall, but not on the left one? If so was there something keeping you from being able to run the wire down through the wall on the left side? I'm just being nosey, I saw you'd said you just recently moved, so perhaps you just haven't had time to route all the wires yet eh?