I could only manage half of the book - it is easy to understand, has many good examples and a lot of informative content. But, probably due to it being a translation, it is not very easy to read, especially compared with one of O'Reilly books on the same subject. Also, I expected more on the business side of modelling, and less on IT system side (that was the reason I picked this book out of many similar ones that covered the IT side in detail).