I signed up for several different introductory CS courses (LTP1 and ITPP on Coursera, CS50x and 6.00x on EdX) and I have to say that this was the best one. Demanding but not too much - about 4-4,5h/week, very thorough but not boring (the disjointed teching, that somebody here has complained about, was for me a major upside - I found out that 6-10 minutes lectures are easier to stomach than those gargantuan 2h lectures on EdX [I can easily sit and listen for such time in real life auditorium but in front of my computer I get all twitchy and my attention floats away]). This course did not cover a huge range of topic but when it touched one, it would not stop until this topic was covered 100%. Also the professors were very active on the forum and woud answer questions, provide clarifications and respond to feedback.
There were also a few downsides but, interestingly enough, most of them - technical: problems with final exam grading (resolving this mess sure took some time), differing level of sound during some of the videos and a total, horrible mess on the discussion forum. But that would be about it - I frankly cannot even think of a bad thing to say about the teaching part. It was so great that I just can't wait for the LTP2.