I had the Q-Acoustics setup but the sub was massive. Didn’t go down well with the missus so had to shift it on.
I replaced them with some Kef Eggs and they’re still going strong quite a few years on. Sound is great (my parents can’t work the surround setup or the combination remote so occasionally when I get home the TV speaker is up and the difference is night and day).
Unfortunately my set came with the incredible exploding sub, and although it was apparently repaired by the vendor (hmm…) it still occasionallly farts out for a while. TBH it’s easier if we leave it off most of the time and only turn it on when needed for film night etc. The dynamic range from the satellites is quite impressive – you rarely feel you need extra bass, though I agree the centre needs to be boosted.