The concepts in the book are relatively straightforward but can be helpful to someone new to building systems and organization for their habits. The book is a quick read and appreciate that the author makes sure to summarize and continually refer back to important concepts. 

My biggest gripe with this book is some of the examples selected. If you are someone who struggled with an ED or just are trying to avoid diet culture, you may find some of the examples provided quite triggering. There is some inherent fat-phobia underlying the author's perception of health related habits.  There were many times I was shaking my head at his analysis or example about how to build healthy diet habits. 

inspiring but heavy focus on looks when it comes to fitness

First off, I listened to the audiobook version and, even though I've read there are graphs and tables, explanations were extremely clear and straight-forward. The examples really helped. I had no trouble following Clear's ideas.
If I'm being honest, Clear doesn't say anything new or revolutionary. I already did many of the things he recommends. However, I think the value in this book is the compilation, identification and clasification of these common practices and ideas in key principles and strategies. This allows for a more comprehensive and conscious approach to habits.

Important trigger warning: Many examples are centered around dieting. This kinda sucked tbh.

Was really motivated after reading this and gave it 4 stars, but after going back to note down the parts I highlighted, I realised it was some useful tips, in between lots of waffling and questionable anecdotes (fatphobia and the implication slums have high rates of disease because the soap isn't nice enough ???)

The parts I found useful/interesting:

Systems > goals, and identity based goals > outcome based goals

Resetting and priming the room. Useful to keep in mind for trying to tackle my messiness.

The 2 minute rule OR, making the first step of the habit your goal rather than outcome. Something I already do with uni work - my goal is just to go to the library rather than write a certain amount.

And the "annual review" at the start of the year and an "integrity report" in June, basically just journalling and reflecting on yourself.

Don’t think I’m the intended audience as someone with ADHD who’s read a lot about forming habits. Didn’t like constant examples of dieting & can imagine it would be triggering for some. There are definitely common examples the author could have used instead. 

It was okay. Some of the tips felt sustainable for behavioral changes but some of the tips could result in negative, unintended outcomes  such as (TW)

EDs I say this from a social work background with formal educationon EDs. The examples given throughout the book can be triggering. In addition, some of the techniques provided including shaming yourself and having others shame you for accountability which is a toxic not only for yourself but also others

.