Share 'To Knot or not to Knot'

I am currently reviewing my advertising dollars for next year. I have spent most of my money advertising on the The Knot for 2 years. I have currently canceled but not sure if I should start up again. In the beginning I received some calls, but last year I received three leads. Most of my leads are from referrals. I am asking if others have found TheKnot part of their advertising a success.