I don't know what's in the CS-61 course, but his UCLA-CS235 Advanced Operating Systems course was REALLY useful. You build the important bits of a multitasking OS.
Same in our company, where I am tasked with phone screening and it's been horrible to interview junior candidates because most of them are looking for good salary rather than passion for computer science or solving the problems not seen before. Ironically, most of them have completed Master's in computer science as well.