( Fuzzies predate Furries, thank gawdz.Collapse )
Verdict: H. Beam Piper's Fuzzy novels and John Scalzi's rewrite are complementary works. I suppose some might strongly prefer one over the other, but I found them to be equally good, each entertaining in a slightly different way, and worth reading without worrying that one will "spoil" the other. It's not exactly hard SF, but it's got a smattering of science in an optimistic, slightly retro universe. Not deep, but definitely fun reads.
Also by John Scalzi: My reviews of The Android's Dream, The God Engines, and Agent to the Stars.
My complete list of book reviews.