I recommend anyone to do a course through NHA. The...

I recommend anyone to do a course through NHA. The course material is full of errors. Language and spelling errors, but also errors in numbers, as a result of which an entire explanation or assignment is incorrect. The guidance from the teachers is sadly poor. You can submit homework and get it back with right or wrong. Explanation of the wrong answers (if it is already included) is very concise. Submitting a question is only when handing in homework. All really very bad.