What has been your experience of using a career coach?

Have you ever used a career or personal coach, how was the experience? Do you feel it was worth it, how did it help you? I am deciding where I need to go now and what my best career path is. Will a career coach help to get me in the right direction, what can I expect? I had a career advisor at school, not sure if it's the same sort of thing. When I was in final year and deciding on what to do after school everybody in my year had a 1-to-1 with an advisor for 20-30 minutes.