Regarding Honors college courses, they are in addition to the major/GE and SDSU graduation requirements.
The Honors Minor in Interdisciplinary Studies is made up of 16 total units. Three of these units count toward General Education requirements. All Honors classes are interactive and discussion based, and enrollment is capped at 25. The 16 units (6 classes) are intended to be spread across the student’s time at SDSU. Depending on when they are admitted, students can complete the curriculum in 2, 3, or 4 years. Students typically enroll in at least 1 Honors class per academic year.
Honors classes do not offer merely more of the same material as their non-Honors counterparts; instead, they show greater breadth and integration.
Here is the curriculum map:https://honors.sdsu.edu/_resources/pdfs/curriculummap.pdf
The biggest con for my son was that they did not offer priority registration and he felt his major had many course requirements to begin with so opted not to apply. I know many students that have had a very positive experience and made helpful connections with their professors along access to meaningful internships in their field of study.
Here are some older discussion threads about the Honors college.
http://talk.qa.collegeconfidential.com/t/is-the-weber-honor-college-at-sdsu-worth-it/
http://talk.qa.collegeconfidential.com/t/should-i-apply-to-weber-honors-college/