I have all of the tracks on discs 1 and 2 as well as many from disc 3, so I can't really justify buying it. But it's all great stuff that I'm sure you'll enjoy.
Especially nice to see "Shaker," the comp's opening track, back in print. For the longest time it was only available on a now out of print EP and the soundtrack to Hal Hartley's Amateur. Also dig the Half Japanese cover, "Ashes on the Ground," from the similarly great From a Motel 6 EP.
[Post-script: Y'know, looking at the track list of disc 3 just now it seem I have less of that material then I thought. Too bad, because there's no way I'm paying for two discs of greatest hits that I already own just to get the one disc of stuff I don't have. Hopefully they issue that third disc individually later -- but I doubt it. ]