I've read the paperback and it's good. I can't see why the Kindle edition would be much different: there's scarcely any fancy formatting or anything.

(By "good" I mean: so far as I can tell the science Wiseman reports is correct; the material is interesting; I haven't tried enough of the concrete advice to have strong anecdotal opinions about how well it works[1]; the quality of the writing is perfectly decent. If you are in the market for either reasonably-scholarly popular psychology or self-help, you should probably get it.)

[1] We see here a concrete example of one reason why self-help books generally don't work.

I've read the paperback version and came away slightly disappointed. The book is essentially a distillation of papers the author found interesting and applicable. The separate chapters felt completely disconnected from each other. There were a number of interesting points, but no cohesion.

As for Kindle, the book design was sufficiently plain that I would have no concerns.

I am not sure if it is only for this book or it is common - Looks like the entire book is there on amazon, for free, if you click on "look inside". Is it a bug, or is it common?