Vassar professors are approachable. You won't be told to go to a teaching assistant because there isn't one. Professors lead classes, grade papers and tests, advise students, make themselves available for hours beyond office hours, and conduct research in their respective field. They live in dorms, are with kids at lectures, and invite students to their homes. Professors create and modify classes to fit personal strengths and student input. They are proficient in what they teach and often dynamic in their style of teaching.
Even if Vassar professors weren't half as good as they are, the academic freedom allows students to construct their own program. The fine print is not something you should pull out a magnifying glass for. There are no core requirements, but only three classes students must take: a writing-intensive version of an introductory class offered in a wide range of departments, a quantitative analysis class, and a foreign language sequence, which a good score on an SAT II test fulfills. The rest of your education is up to you. Students are allowed to "shop" for classes, and most add and drop courses during the first two weeks of class to fine tune their schedules. They can create an independent major and are encouraged to study abroad.