I enjoyed doing this course, however, couldn't get 80% correct in the last quiz, as I didn't quite grasp the DNA part. However, I did this course for fun and am quite content with 77%!!
This course starts off interesting and then just gets absurd. A huge chunk of the genetic part has activities where you have to translate large genetic sequences by hand. If you don't have access to a printer, trying to break up genetic codes into 3-letter codons and translating them is an exercise in frustration. Plus the sequences are not even easily formatted for printing as they are all images so you can't even just copy them into an editor and break up the sequences.
This was only the second course I dropped on Cousera.
