First of all, I try almost all new middle to upper end detectors. I've got a thing about testing and learning a detector to the Nth degree. I tend to spend much more time on the detectors that are difficult to learn and especially those that seem to work inordinately poor at some time or another. The reason for the latter is I suspect that it just can't be as bad as it seems initially and I must be missing something. Sometimes that is the case and rarely it isn't like with the DF uhh, never mind.
When the C$ first came out, no one knew for a spell that the pre-set was WAY too hot for a lot of situations. When I tried one the first day it was available at a local dealer, it virtually wouldn't settle down and detect squat in preset and in fact, the dealer figured it was faulty and sent it back.
It wasn't faulty, it was something new. There was also little to no understanding how the interaction of the sensitivity and threshold functions worked a little more "dramatically" than most of those on other detectors in the past. One thing that was evident from the start was the speed of the C$, certainly a new raising of the bar for TID at that time. So as I learned to control this very different beast and gained confidence from seeing what this thing could find going behind other slower "deeper" detectors, things started looking up... and up some more. After the initial acclimation, I knew I wanted to keep this around for the speed and the flexibility of setup due to the nice array of "tools" or features it had. I got to using the Explorer II primarily at that time (if memory serves me correctly) for obvious reasons but after that, I got the the C$ out and saw what it could pick that the Explorer missed. Faster and a concentric coil instead of the DD of the Exp. Another reason to keep it around. Even though I never used it exclusively or even primarily after I'd felt I'd pretty much learned the beast, it always seemed to produce when I would bring it out because it was different and by then it had captured a spot in my "detecting heart" since it'd gone from apparently an impossible POS to a dam# capable and unique unit. Then just when it was gathering more dust than usual, the small coils came out. That made a whole new reason for me to keep it around since they worked together so well, and oh by the way, my new project detector at that time (T2) was fast but only had a fairly large DD coil. The small concentric really could nail some stuff the big DD skipped even though that detector is every bit as fast and slightly more so IMO than the C$. At that point the C$ still offered a back light, tracker, concentric, and notching...something the other didn't... again important feature differences. Oh well, I hope you get the drift here. Again, it was initially a seriously less than ideal experience followed after time by the realization of just how different and special the C$ is. Of course now, you can just study the forum and avoid all that quality "fun" I referred to.
I've said it many times before and I'll say it again, I believe the C$ will go down as the most misunderstood and underrated detector, certainly of all the ones I've ever owned and liked. Now at only $500-ish new, it's criminal.
Enjoy.