Family friendly would be good - that means highchairs available, changing facilities, kids menu or portions and even little packets of crayons and colouring pads, or similar (both cafe rouge and carluccios always give kids some little bit of nonsense to play with and it helps keep things quiet for those who don't like to sit in restaurants where there are kids and families). On that note, possibly have a family section and a section for those who don't want to sit near kids etc. Always seems a shame to me that it upsets some people's dining experience to be near families (I think/hope the mum changing child on the table episode was fairly exceptional!!) but can also understand that everyone is entitled to enjoy a meal in their own way, so maybe separate sections would be a good idea?