So, I was looking to purchase the Garrett AT Pro. But came across this Garrett GTI2500 at 400.00, Boy there is so much bells and whistles on this thing, probably more than I will need. The constant hum is annoying. I took it out today and compared it against my Ace 150. Found more clad "pennies" with the Ace vs the 2500 quarter and ear ring (not gold) and a small cross charm (not gold). how many of you have or have owned the GTI2500? Are you happy with it? Maybe I need to get to learn it.