What was your opinion of the distribution of easy/hard puzzles?	Just right
What did you think about the puzzle quality of the test?	Very nice
Which set of puzzles did you like the most?	Thermo Sudoku
Of the puzzles you solved/attempted, how well did the point values reflect the difficulty?	Most puzzles were worth the right amount

https://solvetheunsolvable.wordpress.com/enthralling-sudoku/

Those who need the book can mail at enthrallingsudoku@gmail.com or comment in the link provided