You haven't lived 'til you've coded Assembler on an IBM mainframe!
Ah! THOSE were the days! :-)
No, I haven't, but I've used apps coded in Assembly and boy were they ever fast! Even networked using serial cables on 286 processors running graphic simulators, they were amazingly fast!
My first coding was some mainframe 101 basic (I forget the company) in college. But I have gui business database apps still accounting for, and taking in thousands of dollars daily, after 20+ years in operation. ;-)