My review seems to keep evolving, though I couldn't give the album anything higher than a B at this point.
The production is flawless, the playing is excellent throughout, and Bono's voice hasn't sounded this good in years. But I'm having problems with the songs, the strength of the hooks, and that element of playing it too safe that their last few albums have had. After two complete and focused listens, I'd say the track listing is an issue for me; I don't care for the front half of the album, but I really, really enjoy the back half. The first four songs feel very Middle of the Road—safe, overly calculated, mid-tempo, and eager to please . . . someone. Starting with track five, Iris, it starts to get good. The three-track punch of Iris, Volcano, and Raised By Wolves is my favorite sequence on the record in these early days; all three tracks remain definitive U2, but they explore the sounds of their past in ways that they hadn't before, as if they went back in time and took a different path, rather than the left turn of The Unforgettable Fire. After that phase, the album downshifts a bit for me, but Sleep Like a Baby, This is Where You Can Reach Me, and The Troubles are all good, if not quite great, after just two listens. And I will listen more.
Overall, yeah, I'd give it a B. Lyrically, and thematically, it's a look at their very early past, and an artist with their history should do that every once in a while. But, given they've recorded enough material for 4 or 5 albums since the last one, it feels a bit like they've sifted through that material to find the songs that fit together, give them a quick polish, and put it out to shut fans up while they finish Songs of Experience, which is supposedly coming out next Spring.