I've had both beginners and very advanced programmers read it and both found things that they liked.

When I wrote it I had someone that knew a bit about C# in mind and wanted to explore C# and get a gasp on when to use async/dynamic/roslyn/plinq/etc.

Check out the forewords over at http://books.filipekberg.se and check the "Look inside" on Amazon to get a better understanding of what you will get from the book.

I shall do that, I am a beginner starting out in C# so if I do go the route of buying it and learning from it I will let you know how it goes.