1. I have used this program as a tool for graduate students who wanted to build relatively advanced websites for language learners. It is very effective and the students loved it. The price is right (free for non-commercial use) and the program is comprhensive and well documented.
2. The quality of the content is not really an appropriate category unless we are talking about the design of the program (which is excellent).
3. This is a great tool for students in teacher education programs who want to build their own teaching and learning web sites. If we think about this as a tool for the resolution of a problem, such as building a website that will help students learn, then it is terrific.
4. My students were able to build fairly advanced site (considering their low incoming skills).