OK, Im new to this site. I must tell you after about 20 years Ive upgraded to the Ace 250.I had a expensive machine before, but I imagine with the upgrades in technology, like everthing else, they can pack more into a small package. Im in my mid fities and have had some neck and shoulder problems, I was drawn to this product partially due to its advertised wieght. I can loose track of time these days swinging that thing. My mid night stingy and numb hands are gone now. Its amazing. Stay tuned, for my comments. As a musician, reknowned for his ear playing I can tell you Garrett absolutely develops their bell tones for a reason. I know I could definately always trust my old Garrett on pennies, it was just awesome for that. As you who have been using them know, there is a definate "clang" to a coin hit, its like its dropping into a can or a piggy bank, Add some silver content and your blood pressures goes up -their is a "high end" brightness to that bell, you might not be able to discribe in technical terms, along with the very clean clang, when faretting out a silver coin-that where the excitement is. If you guys know what I mean there is that heart skip. I know I have been more selective with my sites in the last year, but in the last 2 and half months, using the Ace 250, I have had a lot of first. I am going to give you the rest of my review in the upcoming months. I have been using it probably 20-30 hours a week. I will give you my ideas on pinpointing, foil sounds, to dig or not to dig deciesion making and more, By the way after using for years now for real, I kid you not, a toy metal detector with the handle cut off for locating in hole,etc I am going to get soon a Pin Pointer. I will say that old toy really did serve me well. For the price of the 250 and the Pinpointer I think- I am making out perhaps better than buying a much more exspensive machine. thanks, Osgood