I use it when circumstances call for it. The very first item I dug using it was a 14" deep buffy.
The way to incorporate it for uses other than prospecting is to crank the IM (Iron Mask) all the way up. Even with IM maxed out it will not disc out any non-ferrous targets. Then, once you've located a target, switch to C/T mode to see if you can get an ID that may tell you what it is, so you can at that point decide whether to pursue it further or just move on.