Thank you for your feedback.

I don't want to compare myself to a 1232 pages-long book. I am sorry you found some typos, the book will certainly get more polish and updates (I include lifetime updates in the price).

My price is $50 because it's not just book. There are demonstrations that you can run and that can save you way more money than $50. I am considering a PDF-only offer for less.

If you have some specific suggestions for me I welcome your feedback. You can write me an email or DM me at @strzibnyj on Twitter.