I asked Kerri to help with my son when I was on a business trip in London so she stayed with him 3 full working days. One of the days she was kind enough to stay until 9 pm so that was a 12-hour working day. We had a lot of homework from school which was all done. Alex loved her. I would highly recommend Kerri as responsible, nice and very trustworthy person to leave kids with. Happy to provide any more details. Regards, Irina.