I would imagine that the 2 rating on this one was based on the reviewer's opinion on the content alone and not the mix, because this mix is quad heaven! Synth sounds coming from all corners and panning all over the place, but never feels forced or gimmicky. As QuantumGuitar said, this mix was commissioned by Columbia to showcase their SQ decoding technology, and it shows. If you were looking for an album to put on to make sure your quad system is calibrated correctly, this would be a fine choice for that, especially in the Q8 format. In fact, fidelity-wise, this might be one of the best sounding Q8s I have heard.
I would also like to comment on the musical content of this release, as I feel that this is being misrepresented. Electronic experimental works by composers such as Stockhausen and Subotnick are definitely acquired tastes, and anyone diving into music like this without context will certainly be taken off guard at first. They were concerned with exploring the possibilities of music in the electronic medium rather than putting together a catchy tune. On paper, this would sound like it is of purely academic interest rather than musical interest. However, Subotnick succeeds here in creating a work that is both experimental and musically appealing: his seemingly-random note clusters will coalesce into rhythmic structures that sound like the prototype of modern electronic music. The piece as a flow and continuity that the listener grows to appreciate as they become more familiar with it.
In all, if you like your music with structure and melody, this album is certainly not for you. However, if you are curious as to the possibilities of both electronic and quadraphonic sound, I would highly recommend giving this a try. I give it a 10 all around.