I own 4, as they were recommended by a friend. 2: 4-14 and 2: 5-25. 2 have failed in some way. One 4-14 was on a .308 and the focus knob simply came loose and fell off. One 5-25 had the eye piece come loose, so now, tightened back up your dot to line up the magnification is at about 4 o'clock instead of 12. Both still work, to a degree, but I wouldn't trust either on more than a .22. It also makes it so that I hesitate to trust the other two, that haven't screwed up yet. At approximately $500/ea, that means I've got 1 K of paperweight, and another 1 K of possible/probable paperweight.
I looked into the warrantee, but basically came to the conclusion that I'm $crewed. I will not waste my money on another Falcon product. Better to go with Vortex or Bushnell when looking at economy or mid-range scopes. At least when/if they screw up you've got some kind of warrantee.