Emily is a top-tier General Maid, and you should employ as many of her as possible. in Expanding the House, Buildings are a crucial source of VP, and Emily can lower their prices to an insane degree. Not only that, but her extra employs allow you to buy a lot of Buildings early on. If this wasn't great enough, her extra Servings almost make her overpowered. If you can employ a lot of Emily's, team her up with maids that let you draw a lot of cards, since you'll have servings to burn.