GM Matthew Sadler - New In Chess magazine:
"There are a few different approaches to drawing up a complete opening course for White like this. At the extremes, you can pick a single setup or pawn structure (something like the King’s Indian Attack for example) and use it against as many Black systems as you can manage, or you take the grandmaster repertoire approach where you pick the best concrete line for each situation. Both have drawbacks of course. Sielecki manages a good blend of both approaches."

IM John Donaldson- (Mechanics Institute:
“Keep it Simple 1.e4 – 2.0 is an invaluable tool for those rated 1800 to 2300 who want to play 1.e4 but don’t have the option of quitting their day job. There is plenty of explanatory prose to make this book accessible to the lower end of this rating group. There are also plenty of well-thought-out opening suggestions to make it interesting for master-level players and above. They will benefit from using the lines in this book as a starting point for further investigations.”