I think I made a good choice,Instead of buying a AT PRO,In my case it would make no sense,as I already own a ACE250 plus an underwater detector,plus a back-up detector<the only thing I wanted was more deepth for the ACE250,so with garrett having a sale on the new deep 10 by 14 coil for the ACE series it was a no brainer for me.I love the 250 and have learned it very well.What I like most is its screen and what and how it tells you about the target.I would not want to change to a VDI read out like on my other detector.Now I have a 6 by 9,9 by12, and now a Excellisor 10 by 14 for the ACE 250.Now I can get some more deeper targets.I will now go back and re-do all schools and parks and beaches.HH Wayne