I run my 975 in stereo occasionally and have no complaints. Well I do have complaints but they are all related to the trade-offs I had to make to get my system to fit in my home theater (a.k.a The Basement).
Of course the usual caveats apply: Good speakers, good layout, good room acoustics, etc..
Aperion Verus Grand Towers & Bookshelves, Verus Forte Center, Infinity Surrounds, Ultra-X12
Oppo BDP-103, XBOX360, Xbox One
Samsung 51" Plasma
RR2150 w/Klipsch SCR-2