Congrats on the new system. It will be great! The QS8's are particularly outstanding surround speakers IMO.
However since you asked, one suggestion to make it possibly even better - look into a vertical center speaker using an M2 or M22 instead of the VP150 if your space can handle it. Especially if you're within your 30 day audition window, you could try both and then return the one you don't like as much for minimal cost. That's the only thing I wish I had done different when I 1st built my system.
Looking forward to reading your impressions.
Cheers,
