I did listen to this over the weekend, as I had hoped to do. I loved it.
Most of the first side is great, and it does have a kind of unity, though maybe that's an illusion created by the Sergeant-Pepper-style intro. "The Fool On the Hill" is as beautiful a tune as McCartney ever wrote. "Blue Jay Way" is haunting. And "Flying" connects them very evocatively. I think "Your Mother Should Know" would have been better placed as the second cut, and it could have used a bit more in the lyric department, but it's an engaging contrast. I agree with Robert Gotcher that "I Am the Walrus" is seriously damaged, almost ruined, by its lyric, which is mostly nonsensical and unpleasant, without the resonance that Dylan was able to get into his equally obscure lyrics. But musically it's very strong.
And the second side contains five of the very best tracks the Beatles recorded during their psychedelic phase, or for that matter ever. Each one is at least as good as anything on Sergeant Pepper. They had been released as singles, but their juxtaposition here only increases their appeal and the impression of something like genius at work within the limits of pop music (much of that no doubt the work of George Martin). They make the album feel like two distinct suites of related songs, each one very strong.
As my reference to "sides" indicates, I listened to my LP copy, which is not a relic of the '60s but of the '80s, my original copy having vanished somewhere along the way, and which had only been played a few times. I was a little disappointed in the quality of the recording, in some songs more than others, and would like to hear some of the remastered ones. I realize most people these days won't hear the "sides" I referred to, at least unless they make a conscious decision to. But the division really works. This is definitely one of my three or four favorite Beatles albums.