This is a tricky one for me. I like much of the album a lot, but the surround mix does not satisfy me. My current feelings are that I would be more inclined to listen to this in stereo than surround. The sound quality is fine, and the surround mix does not lose the feel of the original, but it is a very, very, sensible mix. I guess it could be argued it's ahead of its time in terms of placement. Vocals front phantom centre and at a lower level in rear phantom centre, acoustic guitars frequently at the back, but it doesn't leap out at me as a quad experience. The only wow moment that I recall was the vocal breakdown on People In The Valley. This is an album I wasn't familiar with before I heard of this release, and I'm glad I own it in some form, but I'm surprised how sensible this was for 70s quad. (I'm listening to Sly/Family Stone in quad as I type which is flamboyant, matching with the music, I guess.) So anyway, hard to grade as there's nothing dreadful about the mix (no crazy reverb, for example), it just doesn't grab me. The fidelity is fine, the content is mostly appealing. I dunno, a seven?