I have had my F75Ltd for about 3 months now and it has already proved itself to be one hell of a machine. It totally beats the pants off the bounty hunter 505 I had. I have found a few roman coins and such were I live (Germany) with it. Well anyway, I went searching up in the woods were I found my roman coins and was not finding much, 3rd Reich coins and few junk items. Then I ran my coil right along the base of a tree stump. A nice clear iron signal came into my headphones and the visual was coming up a 9. I never dig iron target's but this seemed to sound nice and I just got a feeling that I should dig this one up. The signal was real clear and did not seem scratchy like a lot of stuff does. I dug down about 8 inches and found a Roman Hammer-Axe! Very happy about purchasing this machine now. At first I was a little frantic because of all the noise, but I am now totally convinced that I did the right thing in purchasing this machine.