I have used SNN for the past 3 1/2 years and found them to be courteous, reliable, and professional. They have always found wonderful, qualified temporary nannies and are very good about honoring requests for certain nannies. One time they were unable to find a nanny for me (I had given them less than 24 hours notice, and figured it was a long shot), and were nice enough to waive the fee for the next time I used their services. This is the agency to use if you want peace of mind regarding childcare.
Pros: Return phone calls promptly, can request certain nannies
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