Good points.....
Well balanced, lightweight, deep seeking, very sensitive, quick to reset between targets, large LCD, notch discrimination, adjustible # of audio tones, TID that operates in discrimination and all-metal, Prospecting mode for target sizing, adjustible threshold, tracking option, wide assortment of coil options, assortment of "auto" programs
not so good points.....
I wish the headphone jack was mounted on the face of the detector instead of the side. The rubber boot covering the headphone jack makes removing the environmental cover a pain, when you need to change batteries.
I don't consider it a "bad point', but I wish there were more 3 khz coil options
what I wouldn't use it for.....
underwater hunting because it isn't submersible.
with the combination of features, settings and coil options,I can't think of any other time I wouldn't use (or couldn't effectively use) the X-70.
Some may think I am biased because I was one of the initial field testers. To those folks I will say that I also do field tests for other manufacturers, and I own several makes and models of detectors. In fact, during the past 35 years, there are darn few detector makes or models that I haven't tried. I keep the ones that fit my style of hunting. I pass on those that don't. Currently, in addition to the X-Terras, I also use an Advantage, an Explorer II, an XLPro and an MXT. Each of them has an assortment of coils that allows them to perform the task I think they do best. I keep my Advantage because it is deep and the 5kHz is super hot on copper and silver coins. I keep the Explorer because having both a conductive and ferrous reading will provide the best results in trashy areas. I like the discrimination characteristics, analog meter and sweep speed of my 4-filter XLPro. And I keep an MXT because I like the separation and stability that the DD shooter coil provides around sidewalks. With that said, during the past 18 months, I've used the X-70 for over 90% of my hunting.
JMHO Randy