I have studied Tai Chi and various forms of qigong with different teachers over more than 25 years. Previous to 2005, I would never have tried nor recommended a home study course in qigong. My last local teacher, who had video, audio and book materials, refused to ever release these without having tought people in person first.
In 2005, I discovered SFQ through Learning Strategies and am so grateful to them and to Master Lin. This is truly the best form of qigong for me that I have ever done and my results so far, both in terms of healing myself and others is remarkable.
I do recommend trying to get together with others, either those who already have the course, or those who might be interested, because it does improve one's practice.
We now have a practice/support group of about 12-15 people in my local area that I started. 4 people had the course materials and the rest got the materials after the first meeting. We now have had about 6 meetings and a few people have had results and all are loving it!
As has been said, it is important to practice on your own and for that the home study materials are superb--more than adequate.
It is helpful to have others to practice with also, and if possible, try and make that happen.
Joining the guild might help out there.
And the more practice the better!
