Nurturing Waldorf or Montessori inspired day care

I am looking for childcare for my son starting in August when he will be 20 months old. I am currently taking a parent child Waldorf class and love their philosophy. I also went to a Montessori preschool and have wonderful memories from that experience. I'm looking for recommendations for day care centers or in home day cares in Berkeley that would give my son a nurturing, loving, child-centered experience. Please share with me why you love the day care you chose! Thank you!