I loved mine. Wish I had never sold it. Also wish I hadn't been so hung up on tab discrimination-but it was the best in this mode. But at foil disc, you could hide coins under a large piece of foil and it would still pick it up. Depth was only about 5" air test and a favorite trick was to lift the coil about an inch in mineralized ground to help with detection in this soil type. Also, it was better to set the disc where the tabs just "clicked" when rejected. The disc control could be rotated way ccw and it was the first true vlf detector and would adjust to the ground minerals. My favorite story? I was at a local fairground and was, as usual, in tab reject.. I got a large but soft signal and automatically thought beer can. I took my knife with a 6" blade and rammed it into the ground-nothing. Cutting out the plug, I rammed it all the way again and got a loud "clack" as the hilt hit the bottom of the hole. I suddenly felt a sick feeling as I realized it had the firmness of a coin. Digging down the 12", I uncovered an 1800's silver dollar with a nice gash in it-ouch! Now, I was still picking up the signal with the coil 1-2" above the ground, so do the math. Whenever someone tells me there's no halo effect, I often go back to this special moment. I often wonder how many great finds I would have if I had not been in tabs all the time. However, this was when tabs kept many hunters out of these infested sites- as evidenced the day I hunted a tab infested school and found over $25 in coins. Special machine.