I have been using a Garrett GTA 350 for several years and have out proformed every one I have ever detected with , many have $1000 machines and are embarased to know that I paid less than $200 . I literly wore that thing out , and recently bought an Ace 250 ,The two are almost identical . I am a ferm believer that it is the " opperator" not the detector that make sucess. And like the GTA the Ace does take some getting used to but if you are patient and methotical in your search you will find that $200 is all it takes to be one of the many on here that can brag about their finds. I have located over three thousand coins and tokens not counting wheaties ,, one a 1884 $10 Gold Eagle. I really enjoy the computer doing all the work instead of me having to mess with all those knobs trying to set ground balance and discrimination settings . The computer will tell you if it is a good target by sounding off strongly in all four diections when you pass the coil in an X.. if it only sounds off in two diresctions then it is not locking on and will likly not be a coin ,, how ever I do try to dig every thing that is strong ,, never know might be a coin in the same hole with trash , this has happend to me befor and I was glad I dug it and now always wonder what was there if I dont and walk away ,,, any way there is my two cents worth . good luck out there and be safe