I stay home with my children so we don't usually hire a babysitter, but for the rare night outs with the hubby we are confident in using care.com to find the perfect sitter for out kiddos.
posted request had prompt turn around in process to choose someone
If more families were on it it would be FANTASTIC. I really like how easy it makes finding a sitter as well as a job. More people need to join but other than that its great.