My ACE 250 arrived today. I had already hunted the yard at the house where I am living. I worked it over for about 3 weeks with an older White's Classic II that my brother had, so I thought that this would be a good test for the ACE 250. I found 1 quarter, 1dime, 1 nickle, and 4 memorial cents. All from the same area that I had covered at least twice before from 90 degree angles. I was pleased that the ACE 250 found these coins deeper that the White's would go. Still no silver from this yard yet, house was built prior to 1950 so I'm still hopeful. I plan to take the ACE to another yard I also hunted before to see how it does. So far I'm pleased