simple and clear

Very little hands-on experience, very basic explanations. Don't expect much from this COBOL && Z/OS tour. The second guy sounds insanely bored, was he forced to do the videos?

a la hora de rendir, muyyy mal traducido al espanol, tenes que si o si hacerlo en ingles porque te cambia las palabras ya definidas por el sistema..

It is good, but demands active study to find explanations about several concepts introduced in the course.

its an introduction, not a neccearily good one given that no cobol code was written but its acceptable.

Labs was missing in JCL.CBTNL

No code written by student

Needs better explanation on each video detailing the topics at hand and not requiring the student to pause and try to figure it out themselves. Also scrap all the labs and replace them with labs that deal with the actual topics of each lesson and not just compiling.