Good song, better b-sides.
The single itself is rather average, but the live cuts are excellent.
Zoo Station - 10/10 Contains more of the wonderful crunchy guitar than the album (Achtung Baby) version. For a performance on the Vertigo Tour, Bono's voice is pretty good (the same is true of Kite).
Kite - 11/10 Yes, that is an 11. Kite is a great song anyway. But when Edge breaks into a minute-long solo, you need to change 10/10 to 11/10, even if it is mathematically improper.
Thus, if I have not made myself abundantly clear, buy the live tracks now.