I was a 10+ year Windows programmer w/ fairly minimal Web development. This book suited me well in some ways and poorly in others.
As the name implies, each chapter jumps right into a situation and most do a pretty good job of stepping through topical pieces of technology then tying it all together into a small application. There were a few chapters in particular that gave me an immediate jump into a real-world function I needed. For that reason alone, it was probably worth the purchase.
The topics covered are fairly broad. I, personally, found myself not seeing much use for some chapters but think that many would feel differently.
The language of choice alternates every other chapter between C# and VB, with the earlier sections discussing snippets in both, but the main application at the end is only covered in one. This makes it harder to follow if you're only focused on one.
The biggest problem is that the source code is generally only snippets in the chapters and not available on the website in many cases. Having gone to print nearly a year ago, it is very frustrating to still find the same "source code coming soon" placeholders for roughly 1/3 of the chapters. This made many of the chapters all but unusable to me.
Overall, the approach is more real world than most books, and the techniques can give interesting ideas or even be put into the site you're working on as you read, but without the source code, much of the book goes to waste. Check the book's site (www.aspnet-solutions.com) before you buy!