Yes... this is the good attitude to have with free information on the net...
Now, because I already have gone through a big part of it, I think it is worth reading it...
It discusses topics that I have never found in "classical" - but not free ! - piano methods and books... Now, I'm not saying that the author is always right !!
If you have some time, read it and tell me what you think ! I will be more than happy to get your feedback.