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David Chen completed this course, spending 2 hours a week on it and found the course difficulty to be easy.
This was a great course. The instructor Daniel K. was incredibly knowledgeable and explained the concepts very clearly. Though I've learned most of the materials in this course while in school, I found the lectures to be a great resource as a refresher. I do believe the topics covered in this course are important, and were presented in a lively manner.
I took this course to get the undergraduate credits. The quality of the material was excellent and the teacher answered my questions on a regular basis. I would take more classes like this one from the teacher.