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.

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.

Do NOT use this product. Bad support! Do NOT use this product because of bad customer service. Whenever I need help with support, they always tell me to put in a feature request or give me an article that I can google myself. They asked me to fill out a survey. I left negative feedback. They escalated to the upper management of my company. That's a good way to respond to negative feedback. Impressive!

167% price increase When i did know this in front i never started with Syncfusion. We started with 3 licenses in 2020 for $1200,- 2021 $1295,- 2022 $1495, 2023 $1495,- and now they say they changed their license structure to make it more suitable for their customers and the normal price is now $4750,- and we can get a super discount of 15% and will pay $4000,- an increase of 2500/1495 = 167% As that is a normal way of doing Business with Syncfusion I want warn all who are considering to start using Synfusion

Powerful and complete features I have to say that Syncfusion is a product that has exceeded my expectations when using it in WPF. When my client requested that my WPF application must have a PDF viewer with annotation and clickable hyperlinks within the PDF, I was at a loss for how to fulfill this requirement. However, just when I was feeling overwhelmed, I discovered Syncfusion, which proved to be the perfect solution to meet my needs. It couldn't have come at a better time.