It was very disappointing to pay for certification and not be able to get it due to issues with the course developers ( a lack of understanding of how coursera works it ' s clear they did not care to adapt to a 5 week course ) and peer reviewed activities proposed that took over 6 weeks to get done . further to the course timeframe )####[['course', 'course workload', 'negative', 'NULL'], ['course', 'course quality', 'negative', 'very disappointing']]