Decided to put this on after listening to Venus and Mars. First thing I noticed is that the fidelity issues that plague Venus & Mars are thankfully not present here. It doesn't necessarily shine in terms of fidelity, but after listening to the other Wings DTS disc, this is a breath of fresh air. The next thing I noticed is that the mix philosophy for this album is drastically different from that of Venus & Mars which had an extremely radical approach to the mix. The mix here is a bit more conservative, by 70's quad standards anyway. A couple of songs ("Jet", "Helen Wheels") are letdowns, with not a lot of activity in the rears. However there are many other moments that are real standouts. The sax solo in "Bluebird" sounds wonderful coming over your right shoulder while at the same time the backing vocals appear from rear left. The buildup at the end of "Nineteen Hundred and Eighty Five" is pretty intense with the orchestra creeping up behind you. Throughout much of the album the rears are employed for things like subtle acoustic guitar strumming or percussion. At times it almost feels more like a modern Scheiner mix.
As for the music, this is where McCartney shut up all the naysayers who had criticized his early solo output. Not a weak cut here. A killer collection of songs. The deep cuts are as strong as the classics. Certainly a case can be made for this being the pinnacle of his post-Beatles output. Forty-six years later, these songs still hold up. There's a real confidence here that had been lacking a bit on Wild Life and Red Rose Speedway.
I am going to knock off a couple of points because of the two tracks where the mix was a let down and because, although not nearly as bad as Venus & Mars, the fidelity here could still be improved upon. Still, I give it a very enthusiastic 8.