First, the recovery speed is unbelievably fast. I laid 5 coins down 3" apart and it will literally hit each seperately. I added a rusty nail in the middle and it still hit all five. I like my V3i but it won't do that. Next moving on to my coin garden, a well established one, 8+ years. Everything came in clear and strong 6" to 8" no problem. I have a buffalo that has sunk so deep nothing will give a good signal but the F75 did. I was in boost with sensitivety at only 75. I'm thinking of digging it up just to see how deep it is. I also liked using the 2 tone setting then checking the numbers. What a great detector. Next I'm planning on hitting some of my pounded sites and see what happens.