Firstly, I'm an infrastructure architect with a focus on storage, and I like technical material. I've no time for marketing and I don't care for material that contains inaccuracies and waffle.
With that in mind, this is a great book and I recommend it to anyone needing to understand VMware HA and DRS.
The chapters are very short and sharp, making it easy to read. I'm a big reader of technical books and short sharp chapters like these make it easy for me to pick up any time I only have minutes free and cover one or two chapters.
I've just finished skim reading it cover to cover and didn't notice any mistakes - which is quite strange. Mistakes annoy me, and fortunately this book didn't have any that jumped out at me, so top marks there.
My only gripe with this book is that it only covers the topics of HA and DRS - but I can't really complain as it is in the title ;-) However, I did speak with the authors and tried to encourage them to compile a more comprehensive work, but sadly such a task is huge (which I appreciate). Shame, as I've enjoyed this work so much that if they came to market with anything else I'd definitely buy.