We tried a nanny-share kind of arrangement (one caregiver, 3 children including the caregiver's daughter) and it did not work out well for us. The caregiver was very devoted, but if she was sick, or her daughter was sick, we had to find alternate care, which was very stressful for us. Ultimately, my daughter just didn't take to her and we had to make a change.
We ended up taking our daughter to Kindercare in Burien, as it was one of a very few places that had an opening when we needed it. She LOVES it there, and we love it too. I love that I know that even if her regular teacher/caregiver is sick, there will be someone to take her place. I really like that there are enough employees that they can make sure everyone gets breaks during the day so they can stay patient and cheerful with the kids. My daughter likes playing with the other kids, and with the toys we don't have at home, and sitting at the tiny toddler-sized table to eat her meals.
It is a bit out of our way, as it is way down in southern Burien (we live near Westwood Village), but other than that we are big fans. You can email me at raindance42@gmail.com if you want to find out more.