There are some things I don't like.1. UnitOfWork is broken. What happens when someone adds entity to repository, and then removes it before commiting? The code will try to remove not existing objects from database and then it will add it!2. Handling of child objects. For example addresses. In any real world app deleting every child object and then adding it again whether there were changes or not would have no place. First performance. Second what If You have to keep history of changes of that child object? What if they have Id's in database and have other children? What if two users work with same objects? What about concurrency? These are problems I have to deal with every day and I would expect some good examples from book writer. Especially that has so many certificates.3. This book has a lot of repetitive text/code for every factory/repository/service clsss... I would like to have some discussion about problems I mentioned in p.24. WPF that nobody knows (yeah some know, but how many WPF have You seen?) shouldn't be used in book about DDD. Do it in WinForms, ASP.NET or even Console app. Why show us WPF? Hell You can't even build sources from this book without going to 3rd party for their GridControl. What's the point of using WPF?This book is good for someone that doesn't know much about DDD and is doing apps for one user. O