Others may beg to differ, but I'd rate this single right up with the best U2 has ever released. I LOVE the Beatle-esque "Window in the Skies" (recorded, not surprisingly, at Abbey Road Studios in London). It's upbeat and positive, and Bono's voice sounds beautiful.
However, you can't, of course, rate a U2 single without considering the "B-Sides," and the extra tracks are what make this single so great. Whenever I look for U2 singles, I always look for live tracks, because I think U2 sounds even better live. In this case, "Zoo Station," one of my all-time favorite U2 songs, sounds better than ever--crystal clear, with crunching guitars and heavy rhythms. The next song, "Kite," never really did it for me up until now, but this nine-minute epic recorded in Sydney, Australia, has made me a full convert.
If you like U2, you simply must buy this.