Although the covered topics could be perceived as "nothing new", one could argue that this exactly the point that the book is trying to make: rather than endlessly searching for a new revolutionary approaches, we should master following what we already know with unprecedented vigilance.

One of my favourite takeaways from the book is to make sure that the architectural choices made are also supported by automatic code analysis tools (so rather than just checking the style of the code, the approach on solving problems is also monitored as much as possible).