We have done this but CTR on FB is very low. We spent a long time improving it and then landing page interaction is poor. I find FB ads are great for continued exposure in FB, for example, towards an FB page. However, to an external site, it's very difficult unless your value proposition is crystal clear. Considering young parents are not thinking of college per se, makes it difficult to be crystal clear in 2 seconds.

Have you seen succesful campaigns with FB ads?