Interesting. Anyway i think could be smaller

good material, but some links are obsolet

me gastaría sea un poco mas practico,

Más videos, menos lecturas.

Completamente autodidacta

There were multiple dead links among the reading. Also, fill in the blank questions are frequently graded incorrect when the answer is correct. Refactor, when refactoring was the correct answer, was graded incorrect. COBOL-like commands, when literally the correct answer showed as COBOL-like commands, was also graded as incorrect. These issues need fixing.

EXTREMELY dissapointed with several quizzes, doesn't matter the input, ITS ALWAYS WRONG! ! !

Some spelling errors and answers that changed between classes and tests

Le falta el cambio en idioma

IMHO this course is way too shallow. Real practical examples are missing.

This is an incredibly important topic, but this course is incredibly thin on content with most of it being short videos (two minutes or less) that then refer the learning to additional reading. Given that other courses in the IBM Mainframe Developer Professional Certificate that allow the student to access a virtual machine on a mainframe, there's a huge missed opportunity here to have the student do some hands-on debugging on a mainframe.

Mores more teaching and less free website articles that may or may not exist or work anymore

no testing and debuggin done in this course