I’ve been working with the native Syncfusion controls for a few months now. My team was previously using Kendo UI. I have been pretty vocal to Telerik about their decision to not support pure native controls at a minimum (I don’t care about the Aurelia bridge, while nice, it’s not needed). I finally convinced my company to leave Telerik. We pay for licenses, so they lost us as a paying customer. I have 2 components left to convert to syncfusion native and one that they currently don’t fully support as native but I couldn’t be happier right now. I don’t really care that there is no “bridge” for aurelia. I like that they produce native controls first then wrap for the other frameworks. If Telerik did this, I’d probably have supported them.
Even though I say I don’t care about a bridge, I have been considering rolling my own which I think may not be too difficult. I wrapped one component internally in my project and I may look at doing a proper bridge. I’m not sure if anyone is interested in this, it would be full open source.