This is and old monster, Garret Hunt Master III ADS, built around 1982..what do you guys think about its abbillities in the new age 30 years since?/I know its not LED on the main view screen, and its not so gold iron thats the view meter that tells you what your supposed to be looking at in modern screen views,, how decent is this old time metal detector for its basic useage...I got it with the sniper coil and the about 7-8 in coil and the 12 in coil for 150ish...any ideas? thanks...