I've been using Syncfusion Essential Grid for Windows Forms tools for about 6 years, when i choose this tool it was in my opinion the most suitable, easy to use and with the best performance on the market, and it stills being the one that covers most of the key features i need on my applications, all this powered by the fact that the support service it's remarkable, the response time it's about 24 hrs maximum, and when they promise something for a specific timeframe, they do it in that timeframe.