I am struggling to use their products… I am struggling to use their products with community licence. Almost every product have problems. Desktop widgeds not properly work at Visual Studio. It messing up all project. Asp controls even basic project not properly setup. Microsoft's standart controls far more nice.

A great product - Components are plenty, and easy to use (we use Angular components, but the others seem to be the same). - Documentation is good. A lot of examples, how-to, and API docs. - Very supportive, the support team replies support tickets that solve our issue quickly, detailed.

Worth building on A superb set of widgets that works the same in countless frameworks from plain Javascript/Typescript to Angular, React and even Flutter. The company is also very responsive to any bug reports with most issues addressed in 24 hours. Overall, a very solid foundation to build on.

Dynamic Company, Syncfusion I think WinUI is not that popular framework yet. Syncfusion already prepared the best WinUI framework. I chose WinUI for legacy c++ libraries use in .NET framework. I am new to WinUI and there were not many articles I can refer to about WinUI. Syncfusion provides awesome WinUI Controls include beautiful Chart libraries and Grid control. especially Charts with animation is really good. I also like your active support too. Syncfusion contacted me first and asked if I have questions. so I replied with some questions about WinUI Controls. Then I could get the solution quickly. I also saw many other frameworks products. it makes me think of that Syncfusion is very dynamic company and I can get the best help from Syncfusion products in future too.

Untested controls I have been using some of their controls for Xamarin Forms for 5+ years now. My honest opinion is that their controls are highly untested. So if you are aiming for a more complex use than the shown in guide, you are going to find out some important bugs. I can say I found problems with almost all of controls I used. Some problems are just easy to solve (elements of style customization being ignored). Some other are just making the whole control unusable. For instance, SfChat has an obligatory behaviour of starting the listView on the first message and automatically scroll till last one. Super cool when you have 20 messages. UNUSABLE in real cases where you have 1500 messages as you would just stay staring at the screen scrolling by inself for 30 seconds without even being able to interact with the control. If you just want the plain control without any type of customization, it definitely saves you some implementation time.