I had an 11-email correspondence with Jonah and Vipul about course selection. I'm a junior at Harvard and was worried that I was hitting diminishing marginal returns to courses taken--I haven't been able to find very good non-technical courses and I'm hitting diminishing marginal returns to technical ones.

Jonah and Vipul looked through the Harvard course catalog and gave me several specific course recommendations according to the goals and criteria I gave them, as well as several more general pointers--try to take more graduate-level courses, consider intellectual history as an especially helpful subfield of the humanities, some economics can be learned fairly well through self-study, etc. (with supporting details and reasoning, not just assertions). They responded very quickly, asked a bunch of good clarifying questions, and their advice was quite detailed and seems good, though I won't get to put any of it into practice until school starts back up again in a few weeks. Overall I'm quite pleased with their advising so far, though I can't speak to their results yet with confidence.