So, I started the course. Within not a full week I finished 5 modules. Until this moment I lost only a half point (just because I was not careful enough).
Unfortunately until now I feel this material is not deep enough to me, but I'm not a C programmer ace. I hope that the later material will be harder, because under a name "Lab" writing a multiplication of two unsigned integer within a conditional block containing and relation of four basic expressions took me less that two minutes and it was producing a 100% in the grading on the first run.
If it goes this way, I'll finish the course in no time, but the learning value is doubtful to me. :-(