By far the best build quality of any detector I've had, or seen, and even though Troy and I had a couple of disagreements, to put it mildly, about some of the things I posted about it, it had excellent performance. Very deep in my mild ground, except around some electrical lines that interferred with it, with good target separation - better with the 7 inch coil. Good discrimination and the target check switch is great for coin hunters, but setting it up right is critical for getting the most depth. It has a "sweet spot" somewhere around 2.5 on the disc dial that gives optimum depth, just a hair off and there's a noticable difference. A correct ground balance is also critical. It has to be set just a little more positive than normal. The X5 is really hot on small gold jewelry and nickels (my nickel count compared to other coins was way higher than with any other detector I've used), but it's also really hot on foil bits, birdshot and all manner of other small nonferrous junk. I kept the X5 I had for 18 months and used it a lot, mostly with the 7 inch coil, for the first 6 months or so but the audio frequency was a lot higher in tone than I like so I gradually stopped using it and eventually gave it to one of my daughters to sell on Ebay.