What are the academics like at your school?
The math department at Reed is truly excellent. Come to Reed if you want to struggle with the most beautiful ideas in mathematics. The curriculum is very rigorous. Expect to prove every theorem. Don't expect to get much practice computing things, or learning applications. You won't be prepared for a career in accounting, but no one comes to Reed for a career in anything. You come to Reed because you want to learn.
With the exception of the economics department, which is currently experiencing growing pains, the entire academic experience is phenomenal. Expect to work harder than you've ever worked before, but also expect to be inspired by one-on-one talks with brilliant professors, have lucid conversations with other students, and read works of genius. The senior thesis is a pretty huge deal. Some students do theses that would be admissible at some graduate schools.
Classes are generally small, though bigger than I expected. Twenty students would make a large class at Reed. As a result, students have great interactions with their professors.