I bought a Revolver with Sustainer in November, '02. It is, indeed, a bunch of fun for those long, ringing solos, especially with the Harmonic mode (and, a little whammy-bar action). I also like to run it through a chorus and a clean amp - the chords swell and sing infinitely.
However, it is (understandably) much thinner in sound than my '72 Gibson SG Special!!!