Great choice !
I have owned one for 4 years (we had it here in Europe before you guys) and stupidly sold it a few months ago, but at the same time, it was to help a friend getting back to the hobby. It has found me over 10.000 coins in those four years (beach hunting) and got me a fair share of jewelry. You will get 8" on an US quarter, and the unit excells in trash. Be aware that increasing the disc above the 5c setting wil reduce depth.
By the way, the coin of your avatar is well known to me...Found in the US?
HH
Grumpy