I think a 3 star rating is probably fairly generous, the clients have a very mixed experience with AA. Some clients have terrible problems with very inexperienced PAs for example. For the staff, it really varies a lot.
My own experience as a live-in PA was more or less positive, I was lucky to get an excellent client and an excellent manager to - more ... match. So conditions for me were good. The pay is pretty bad, it works out at about minimum wage per hour. Even with free accommodation and food and travel added in, this is not a well paid job. For live in PA's it's a zero hours contract so on pape ... - less