How many family members do you have? Do u need a helper to take care of baby?
The first one, I think you should ask her what detergent she used to wash your baby's clothes and also ask her what utensil she used to seperate the 'leung chat'? When she played with your baby, how she acted? Happy, pretented to be happy or always glazed at you and looked for your response.
The secone one, I think u you ask her to 試工 before u make the final decision.
In my own opinion, love your baby, clean and tidy are the most important thing.