We have a place in a small very rural town where we have no internet access meaning no cable tv and no internet unless you use your cell or portable WiFi hotspot (which is why the damn Verizon hill is $600+ a month, but I digrsss).
We pay annually a small local installer who is service orientsted. We have sensors on most windows and internal motion sensors.
It works I’ll tell you every now and again we get an alarm when we’re down in town, they call and ask do you want to call the cops or not (if they don’t reach us the cops are called) and we typically go home and we have a trooper, sheriff and a state park police and maybe an Encon cop.
A friend has one that he can see everything, but I don’t get it. I don’t need to see all my rooms.
Visible cameras as a deterrent or as a capture device I get 100%
I personally wouldn’t screw with setting it up myself - it was pretty inexpensive if I exam correctly.