In my opinion, Wrox puts out some of the best books for coders, and as a .NET developer this pack is perfect. Between the 4 books they cover in detail the .NET framework, C#, ASP.NET, Windows development, higher-level OOP concepts (including generics), and ADO.NET, plus a slew of other things; with plenty of great examples and code snippets. Pretty much anything to do with .NET developed in included in the boxed set, with the exception of VB.NET -- there are many VB.NET samples in some of the books, but it's predominantly a C# centric package.
I think for intermediate to senior .NET web/windows developers, this is a definite must-have. Probably not for new coders as they do assume you understand coding basics, OOP concepts, and already have some experience with .NET.