Little Ones are absolutely awful. They charge very high fees for finding second rate bilingual nannies who they barely screen at all. And if your nanny doesn't work out, forget their "replacement guarantee" they've already got your money and you're out of luck. If you're considering using them save your money and find your nanny on Gumtree - 25 year olds that speak a foreign language are not difficult to find in London. Better yet, find a more reputable agency.