Firstly, all of my students can easily login to it and can see videos in 1080p without paying. Also,
the discussion board has a lot of question and as my students have informed me that their doubts are already been solved by someone so they are able to get the answers easily. Also, the videos, quizzes, and hints encourage retention without stressing down the students with too much information at once.
The point system, in particular, is unnecessary and seems redundant. Also, the videos for some courses seem pretty old and need to be updated.
Hands Down the best website for students of all statures. A big thumbs up.
I use it with my students at TAMU to help them in learning basic and even high-level concepts in most of their freshman and sophomore level courses.