These components are very helpful, gives you a lot of options, they are really friendly, I mean you can integrate them in your projects with just looking at the examples, which by the way are pretty simple in a good way! One of the best things about Syncfusion is the support, it is great, the answer is fast and good, they care about their users! Other important aspect is it allowed me to reduce the development time. I was sceptical when a coleague recommend it to me, but now I am the one who recommends it, I'm using their controls in all my Silverlight and Windows Forms applications. 5 stars with not doubt!