Simple to use, batteries last forever, good re-sale value. Doesnt go too deep you prob wont get any deeper than 5 inches on a coin, but for a ploughed field or park this does not matter. I wouldnt bother buying this detector if you are going to use it for the beach unless you plan on detecting dry sand only. I have found 3 silver hammered coins with this detector upto 4 inches deep, I used the custom setting with the first two notches blanked out and sensitivity as high as you can get it. I have previously purchased two Ace 250's from this seller one for £99 and one for £127 both delivered within 2 days, it is worth watching this site/seller daily as the price rises and drops along with the price of the dollar, if you see it for £99 then buy it quickly as they do sell out!