Videos of Strang himself covering the material are all up on Youtube[1]. Jump over and spend some time watching the first session or whatever, should give you a good feel for how accessible it is.
There's also a web-page[2] with lots (and I do mean lots!) of historical problem sets and exams from this class in previous years. It goes back to sometime in the mid 1990's. So again, you could skim around some of that stuff and see how intimidating it appears.
FWIW, I never took Linear Algebra in school, or anything beyond Calc I. And I've watched the first three or four lectures in this sequence and so far it seems accessible enough. YMMV.
There's also a web-page[2] with lots (and I do mean lots!) of historical problem sets and exams from this class in previous years. It goes back to sometime in the mid 1990's. So again, you could skim around some of that stuff and see how intimidating it appears.
FWIW, I never took Linear Algebra in school, or anything beyond Calc I. And I've watched the first three or four lectures in this sequence and so far it seems accessible enough. YMMV.
[1]: https://www.youtube.com/playlist?list=PL221E2BBF13BECF6C
[2]: http://web.mit.edu/18.06/www/old.shtml