During my time, 2yrs ago, I paid $2800 for 28 days. She didnt have exp with twins but she proved to be able to handle them. Lack of sleep though so she will nap in the afternoon and she didnt have to cook. I have my maid to help out as well. When I checked with agencies then, they all promised the sky with experienced nannies but most unable to show me cv and then they were charging about $3.2k onwards. Check carefully their cv. I have another friend who used 2 nannies instead, price about the same as they shared workload.