As I noted in the Pre-Order Thread, in the last year or so I've come around to the view that the original album is a masterpiece. In particular, I think it may be the best and most consistent REM album from a songwriting perspective (which is obviously saying quite a bit) - the record is known to everyone as a giant monument of guitar effects and other oddball production choices, but that monument is built on top of twelve rock-solid rock songs. So if the remixes amount to them scraping off a few layers of distortion and gimmicks like the tremolo in What's the Frequency, and that helps people who are put off by the album's overall aesthetic appreciate how frigging good these songs are, then that'll make me happy. But rewriting the songs themselves (seriously..."don't fuck with me"? I didn't get around to listening to this remix until this afternoon and can't believe that's not all we've been talking about all day) is a different story.
I'd never heard the bit about how it was supposed to be recorded live with few overdubs - I think that would have been amazing, but 1) I actually do like the sound of the original record, 2) I think it was good for the band at that time to be pushing their boundaries and 3) that sounds a lot like the approach they ended up taking on New Adventures in Hi-Fi, so it's possible/likely that if they'd gone that route on Monster then we wouldn't have gotten the same bulletproof follow-up record.