trust me, You will not learn anything new from them!!! They just trying to make you pay $60 bucks for something, that You will find out on Your own from YT forums. And YT is FREE!!! and plus that her membership is only 1 person opinon, and YT forums are 10,000 ppl experiences. So do not let them fool You.
I did pay $30 bucks for an E-book( about yorkies) this same way , and I have to say that YT is soooo much better...