As a Equinox user for years both the 600 and 800. I have been able to pull 10" dimes and cents regularly. I feel I have maxed out the Nox and decided to go with the Manticore, it has not disappointed, I've found zincs at 11" lots of coins at all depths. I haven't found any really old coins yet because the parks I've been hitting have been hammered by others and myself with the Nox using 15" coils . We are in the middle of winter here and can only dig in unfrozen spots that also limit us. The Manticore is very precise on its target ID , and the tones are right on. It takes a while to switch over from the Equinox and there is some what of a learning curve to it. I'm satisficed with it means that in my own opinion it meats or exceeds my expectation, of course I was also one of the few that thought the Nox was one of the best detectors made. Mine never leaked has been abused in all climates submerged for hours on end.