Abbey Road (50th Anniversary Remix) by The Beatles - 3.5 (Great)
It's a clear technical improvement over the previous remasters, but it's also not nearly as mind-blowing of a step up as the 50th Anniversary remixes of Sgt. Pepper's and the White Album were. Abbey Road was already sonic-ly close to perfect to begin with, and basically started out way ahead of the other Beatles albums-- now all the remixes are pretty equal in sound quality.
Drums, Bass, and Harmonies are way more clear and beautiful, and the soundstage/presentation is livelier and more like you're really there. The most startling improvement for me was how good "Because" sounds-- It's now my favorite track on the album. There's also a pretty cool quirk where the dueling Guitars in "The End" now pan in different areas-- McCartney can be heard playing to the left of you, Harrison to the right, and Lennon is dead center as they trade solos back and forth.
Abbey Road as a whole is not close to my favorite Beatles album, and that hasn't changed. Octopus' Garden and Maxwell Silver's Hammer are outright lame tracks that completely detract from the experience, in my mind, and I'm not the hugest fan of "You Never Give Me My Money", "Her Majesty", and "Oh Darling" (although they're very serviceable). The rest of the album is incredible-- very perfectionist, pristine, and satisfying, but lacks the raw energy, attitude, charm, and experimentation of some of the preceding albums. If anything, the fact that the tone of the album is so pristine and perfectionist makes the weaker tracks negatively stand out even more (whereas in the White Album, they're a charming feature that genuinely adds to the incredible mood of the album).
Standouts for me as a whole are still "Because", "Come Together", and the final three McCartney tracks of the Medley ("Golden Slumbers", "Carry That Weight" & "The End"). Harrison's contributions are great, but his supposed ascension to greatness on this album is totally overblown-- he was already at least this good in previous albums-- neither of his tracks are close to the level of "While My Guitar Gently Weeps" or "Love You To", and I might even lean towards preferring stuff like "Within You Without You" or "Long, Long Long".
I didn't hear anything particularly special or worthwhile from sampling the bonus tracks, personally (especially compared to the 50th Anniversary Remix of the White Album, which had some incredible additional content).
Overall, I love this series of Beatles projects that Giles Martin is taking on and do not for the life of me understand the "It's like painting over the Mona Lisa!" people. If you can improve and illuminate something great/iconic without compromising/cheapening its integrity or misleading the reputation of the original in the process, you should absolutely do it, and if they are truly better, they should be newly canonized as such and MAKE history, IMO. Usually attempts to superficially improve classics are likely to make them worse (this happens most often with video game remasters), but for instances where that's not the case, nothing should be sacred.
I really hope they cycle back to doing Rubber Soul and Revolver soon rather than focus too much on the significance of a literal 50th Anniversary-- I mean who really cares? Those two albums are in greatest need of this treatment and would likely skyrocket up my favorites if they were given it. Instead, they'll probably do Let it Be next, which I don't really care too much for (unless they get really ballsy and decide to completely ignore the Specter arrangement and turn it into a great album-- very unlikely).
Edit: Huh. Did not expect that to become a word vomit, but it did.