I have decided to back with a Garrett. I used to have an Ace 250 but traded it away. I don't have a detector now and I've been thinking about getting the Ace 350. Is it really any better than the 250? Does it go any deeper? Does it pick up, identify or discriminate any better? How does the DD coil on the 350 make it different than the 250's coil? etc... I want to find a little bit of everything from coins to jewelry and I'll be using it in NC and SC from the mountains to the beach. The AT Pro looks great but $600 would just get me beat up by my wife! Thanks for any help in deciding.