Mainly it helps with my wife's anxiety. We didn't get it for package theft specifically. We have had a drug addict get into our fenced-in backyard and wander around for a while, others shit in the alley, and we sometimes hear screaming matches from addicts or mentally ill people. Having the cameras helps her feel a little safer from those kinds of people.

(Whether we are materially safer is a separate question. But given that I think we are actually quite safe in general, the product is worth it to us in terms of peace of mind alone.)