I haven't had any depth problems. It will find stuff deeper than I am usually willing to dig.
Yes it chatters a little but it's pretty obvious when it hits a real target.
For me, it's a great machine. It does everything I need it to do. I've been hunting primarily in salt water since I got it and I rinse it each time. I have had no corrosion problems, no leaks, and I've dug some pretty deep holes in wet sand and in the water. I like being able to decide when I get to the beach if I'm going to hunt dry sand or in the water without needing to bring two detectors.
All beaches are different though and how it performs depends on the beach. I did hunt one beach and was getting frustrated because it had me digging a bunch of holes and I was finding nothing in them ... until I discovered the beach was covered in tiny little rust flakes from a sunken barge. Once I figured out how they sounded (they changed from a high tone to an iron tone as soon as you start to dig them) I avoided them for the rest of the night. That would have driven me nuts on a PI machine with poor discrimination... like a sea hunter or something. I don't discriminate though, I just learn the sounds.
