We've been using the SyncFusion controls, Essential Studio Enterprise, for many years (since 2004) and we've found them extremely useful - in fact we'll go so far as to say they're Essential! The suite includes controls for Windows Forms, ASP.Net, WPF, Silverlight and other controls that allow you to create native PDF files, Word & Excel Documents and so much more - in fact, it's one of the few suites that gives you all this functionality at such a great price - source code is also available should you need it as well. We've primarily used the Windows Form controls along with their BackOffice controls which allow us to create a variety of Office compatible documents on the fly. Their charting controls have enabled us to display data in various ways and it's very easy to print these off or export them to a variety of formats including images, PDF's and SyncFusion's document package (DocIO). We're about to start along the ASP.Net track and we'll be using their ASP controls and we'll let you know how we get on. There's a 30 day evaluation available so give it a try and you won't look back!

Very thorough code samples and fairly complete class-level documentation. It's ridiculously easy to get started with SyncFusion components, and the learning curve is fairly shallow when you consider the full provided feature set. I've used the grid and editor components with great success and was able to build a very good performing application with highly dynamic data using Syncfusion components to power it all.