Same lady for 10+ years. I wouldn’t use a service that sends a different person every week. She’s basically family. There is some small effort to keep jewels locked up, my paper work is in safety deposit box. But she does see what’s in our nightstand and our dirty undies. It’s not a big deal, she’s a professional and has discretion. Sounds elitist af but she doesn’t exactly run in the same social circles as her clients so it’s not like she’s out there gossiping about our home life details.

Edit; word of mouth is key. While we have a long term person now, we’ve had some ups and downs in the past. Get people’s recommendations before you hire someone. Two reasons; you’ll know they’re good maids (a lot are not good), also most of their clients have come from word of mouth so if they really screw up/steal their business basically evaporates as word spreads. Likewise if you help them with referrals, they will treat you very well (eg our lady will come over after a dinner party, gathering, etc). You also have to “train” them. Even if they’re good, you have some quirks and preferences they would never guess

I use word of mouth recommendations for finding housekeepers rather than a service. I think a lot of people do it this way. I have cameras around my place anyways but at some point you're just going to have to make your own judgements about the trustworthiness of someone.