I was torn whether to buy this as a print book, or Kindle edition. I decided to get the Kindle version because of the value of being able to carry it with me in my phone, computer, kindle, and iPad. I don't regret the decision.
The Kindle illustrations are quite good, which is not always the case. I always hesitate to buy Kindle books with illustrations. In OSX Lion, you can three-finger drag images from the book (on the cloud reader) into a word processor and see what the specs are. The images all seem to be 425ish-by-X (where X<425). Plenty of resolution to look very crisp in an ebook. Plenty of beautiful color. The book is not heavily illustrated. The one bitmap table I came across was readable, but not especially crisp (a very nice unit conversion chart).
The biggest letdown of the Kindle edition is common with Kindle books: the index's page numbers are useless. The index is also not hyperlinked. Thankfully, the contents are hyperlinked and most Kindle software will allow you to do a text search.
There are lots of very good web links following various sections. A couple of examples are that the draught section ends with a link to the BA's excellent technical manual, and the Cicerone section ends with a link pointing to the organization's web site. It is definitely a modern book that embraces the web.
There are already many reviews covering content. I haven't read enough to comment on that. What I have read so far has been accurate and concise. It isn't terribly in-depth on any topic, but covers a very wide range of topics.
Highly recommended. If you carry a smart phone, Kindle, or iPad it is a heck of a nice thing to keep in your pocket or bag. I'd give it five stars if the index were hyperlinked.
Cheers!