Hello Denes!
I have bought this book about a week ago and have to say, that I do like it very much
the profiles are not top notch, those found in the recent JaPo volume on the Dora series or the ones from the Jagdwaffe series are much better IMHO.
but the book itself is a good addition to any LW collection;
it gives a good overview of those other users of the 109 including Czech built Avias and Spanish built Buchons;
the text is well researched and written in a good style, and it seems the editor did his job this time - I have spotted no grammar or spelling mistakes so far;
a good change from the recent Manfred Griehl books, which were full of such errors;
overall, I would give it a 8 out of 10, a good book which forms a good basis for further reading-the sources provided on the last pages point to further books, if one is interested
I hope this is a good short review for all interested people
for more questions, feel free to ask
cheers
phil