I don't have the Netgear Arlo system but do have CCTV, and it has been useful a couple of times lately. Firstly Amazon Logistics have a habit of leaving my deliveries in the dustbin or other 'safe' place, yet recording on the tracking that a neighbour has it, so its useful for finding out what they have done with it. Secondly, I caught our cleaner stealing from us (nothing high value - just food, alcohol, household stuff). She was not the sharpest tool in the box - the cameras are not in any way hidden, and we even have an ipad mounted in the hallway giving a live feed from the cameras, yet she placed the bag of loot on the floor of the porch whilst closing the door, in full view of the camera!