Regarding this one........
.... I recently picked up a FX-1 for $300 (there's one currently on the Detroit Craig's List for $275 - careful)....
That one was legit. How do I know? It was one of mine. I had two. The 2nd was modified by a previous owner. I had sold it once for $325 but the buyer got squeamish about the mods and I refunded his money, so this time I sold that one ONLY LOCAL IN DETROIT and ONLY TO SOMEONE WHO COULD SEE THE MODS AND AGREE THAT IT WAS OK. That happened and now I and the new owner are both happy happy. A previous owner moved the XLR pad to the back and the on/off switch to the front.
The other one that I own is now posted for sale here at a more logical $450
Peace,
James