Santugini relies on a lot of algebra in the homework problems. It's expected that you'll spend a lot of time asking questions to your TA and/or Santugini, they would be impossible to do on your own.

He makes himself extremely available for meetings and answering direct messages with any questions about the material.

Notoriously harder than the other profs, but he really wants to prepare you well for the rest of the Econ major. Adds about 2-3 hours of extra online videos that are important to watch if you're going to keep up with the class.

Other than the fact that it's difficult he's a great teacher that loves Econ and will help you with anything enthusiastically if you approach him.