It is a good discussion which won't be decided by anyone in the near future. I hope that the Trinnov systems graphical output will help a lot of us make better decisions as to room enhancements. It would really be useful if it allows adjustments to be displayed real time on the GUI so we can see the effects of some of the changes.
Right now I have a 9 foot fake Xmas tree right in my sound field and it sits in the exact spot where my usual listening area is. I recalibrated the 990 (after the wife recalibrated me)to try to account for it but I can't wait till it is gone