I absolutely love it. That is my flat out opinion. It is a marvelous tool for my kiddos to learn and re-learn concepts that they have already learned or need to learn again. I would and have recommended it to my colleagues in the field of education.
How I Use It
As a special education teacher, I have found that quill.org an invaluable tool in re-enforcing concepts learned in the general education classroom. I have my students on quill daily for at least 15 minutes, if not more.