if you can save just a little more cash ..I was recently in your position as well, and after VERY EXTENSIVE ! research.go with the AT PRO you will be so happy you did ...you can call Bart from Big boys hobbies .com ... he will give you the best price ...it will blow your mind how cheep he can sell the AT PRO.....take a look at my videos on youtube ..the link is at the bottom of this message ...I have dug targets 10" down .. I just dug a 1917 half dollar 10" down ...and my oldest coin ever a 1787 copper 9" down.... ..........the ACE 350 doe's not have ground balance .....you are going to miss deep targets in some ground types ..and NO target ID # ...NO tone roll..NO proportional audio ... slower recovery speed ..annoying bell tone sound ...you will be digging way more trash....some people like to dig everything .. some parks are way to trashy for me ...I like to hunt in the rain so the AT being water proof is cool to ....if you get the ACE 350 in a short time you will want more ...