I think it can tell if your maid is trustworthy or not. I have the same experience, also left my 3 months old daughter to my maid to take care. At first, pretty worried then I would do sudden checkups on her and checked her from the cam. Gradually, I have released my worry a bit. But it turned out that she has changed after 1 year, I was also pretty worried again....
Then I changed her, my current maid gave me more confidence. Of course, when I checked her, sometimes would still find things not very good but acceptable lor.