So I talked about the “inaugural run” with the EZ-1000 here.
I mentioned that we can sacrifice battery life for accuracy/frequency, and vice versa.
So on the way home from Mexico, I put an EZ-1000 in 8 second update mode and it ran for 16 hours before the battery ran out.
Once I came home (via the same route I run typically), I went for a run, & took the unit with me.
I want to show the accuracy of this unit in “high accuracy mode” — it’s amazingly accurate.
Here is the route of me driving home with the unit in my cup-holder:

You can see that I ran to the edge of the road, and purposely waited 10 seconds to begin running back to ensure an “idle” (blue) dot showed up where I stopped running:

Note that there is no sidewalk at that area of the road so I am on the Eastbound side, opposite where I drove earlier (the line without any “pins”).
Zooming down, the accuracy is ridiculous — you can see where I cross the street because the sidewalk ends and there is more room to run on the other side (both heading out and coming back) — you can even tell that I stay to the right of the sidewalk each direction!:

So it was ridiculously windy (really, it wasn’t that I just got back from 4 days of eating & drinking in Mexico and am out of shape), and I had to walk for a block twice during my Westbound (into the wind) return to home. It’s trivial to pick that out based on the map points:

And I wanted to “simulate” a patrolman taking a shortcut because they were too tired to go the full route to the entry gate & simply cut through the drainage culvert (we don’t have sewers here in the desert…):

While I was “simulating” a lazy patrolman & taking the shortcut, for the blog’s sake, I had to walk through some shrubs where I thought “I should probably not do this since it’s beginning to be rattlesnake season” (Spring & Autumn are when the snakes are warm but not too hot to head to the mountains in AZ).
As I was heading back to my house, sure enough, I saw a rattlesnake in the road (warming up in the late afternoon) but didn’t have my phone to take a picture for the blog’s sake, and to convince my kids to stay out of the desert. I ran home, grabbed my camera, ran back, but by then it was gone.
Here’s that activity:

Sorry, no fun rattlesnake picture for the blog except how long it took me to get home (.10 miles), grab my camera (and my kid who I figured I would have come with to see it), run back (.10 miles), and find the snake gone (I saw its skin it left in the dirt nearby the next day, for what it’s worth).
5 minutes, from 3:45 to 3:50 PM, according to GPS, is too long to expect a rattlesnake to sit around and wait for a neighbor to come back and take its picture (or club it depending on the neighbor…) :

Anyway, this should give you an idea for how accurate the EZ-1000 is for piecing together a security person’s day, a police-officer’s beat and/or pursuit/apprehension (pardon the pun), etc.
We look forward to helping you with your exact requirements using the EZ-1000 (or any GPS Insight offering), and hope you avoid the rattlesnakes.
Rob.