I own a Garrett Ace 150 and really enjoy it. Never found anything of major value, but have found pre-1900 coins, Revolutionary war era musket balls and other relics. While at Myrtle Beach, SC a couple of years ago, we noticed a young couple on the beach looking for something in the sand. I went down to see if I could help. The young mother-to-be had lost her wedding band and was crying like a baby. I grabbed my detector and found the ring within three minutes. Made a couple very happy. My best find to date.
OTOH, I have a nice collection of aluminum pull tabs. LOL
Thanks.