If you're choosing a childcare, then you'll be able to answer some really easy questions. Are the facilities secure - will my child's physical safety be ensured. Are there enough resources, things to play with and things to do? What do parents say about the centre? Online reviews, google ratings, Facebook feedback etc. Do they provide nappies, what educational curriculum do they have in place etc.
These are the easy questions, the hard one to answer without first enrolling is will your child be happy and secure?