3 stars is specifically for the kindle version. I have not had the book long so will take a while to fully assess but seems very comprehensive with more than enough detail for a not very experienced birder such as myself. This was purchased while on holiday in Crete for reference as I had not bought along a field guide. The point about this not being ideal for kindle is well made by a previous reviewer. While the written information is still there much of the picture and map detail is lost when viewing on the current kindle eBook. And this is not a cheap purchase. The kindle fire will serve it better I guess when it comes out in the UK. I bought this knowing that I would be transferring it to iPad and eventually to my laptop via the kindle app so at least I have the pictures in colour. You can also zoom in a little but the effect is blurry. As one would not tend to read this in a linear fashion as you would a novel, navigation is also an issue. Again much easier on the iPad than on the kindle. It is a compromise, no question so you should keep that in mind considering the expense, but it did come in very handy and I may consider buying the hard back version at some point. One point regarding the content which concerns me a little but which may be down to my own lack of experience is the accuracy of some of the distribution maps. For example, certain birds of prey not seemingly occurring in Crete when other local books say that they do, trying to find which green coloured warblers I have seen commonly but none of which seem to be occurring according to the maps, waxwings seemingly not occurring in the UK when plainly they do. Although recently reprinted the book is a few years old now. I wonder if some things have changed in the interim, whether I am missing something or whether some of the information is incorrect. But as I say on the whole the book is tremendously detailed and informative.