Nick's comments above ring true, but I personally don't think much of the live tracks on the album, in any context. They are certainly curious choices with all the great performances available from the '87 tour -- not to mention several great performances in the R&H film, which for some reason didn't make the album.
I do love the "Helter Skelter" intro, because it's a good performance (vocally, anyway), and it's so random and weird -- it just sets the tone for a wacky, 'anything-goes' kind of album that plays like a bootleg.
But after that...? "All Along the Watchtower" is poor -- it's not a great performance by any standards, but it's rubbish compared to the 1989 shows. I like the black-gospel idea of the "Still Haven't Found" collaboration, but it's a one-off kind of idea ("you had to be there"), with really showy vocals by the gospel leads, and a very poor vocal by Bono. "Silver and Gold" is sold enough musically (nothing great, yet solid), but Bono's grand-standing speech is just cringe-inducing and sinks the whole thing. "Pride" is just bad, bad, bad -- terrible guitar tone, weak vocals, slow tempo. And "Bullet the Blue Sky" I find really pointless in that it basically mimics the album track, but with another grandstanding speech.
In addition, all the live tracks have rather poor production, I think. They sound very thin and with not enough reverb or bottom-end, or something.
Well, that's my take on it.