ASP.NET Core Blazor is Microsoft’s framework for implementing web-based applications, aimed at developers with knowledge of .NET and C#. It exists alongside other frameworks such as ASP.NET Core MVC. About two and a half years after the release of Blazor WebAssembly and based on our experiences from many customer projects at Thinktecture, we want to have a close look at the following questions: What is the current state of the framework? How can you successfully use Blazor? And where does it have limitations?