Throughout the last five or six years, I've been jumping on and off on projects, sometimes working on Xamarin, and other times working on ASP.NET.
Currently, I'm working on a project that uses ASP.NET (with .NET Core) quite extensively. This project is intended to help a business internally maintain an inventory of their commodities, assets, and so on. It's essentially an inventory-based evolution developed on ASP.NET.
In total, we have around 30 users working with ASP.NET in my company.
The developer support for ASP.NET is a big positive. It's actually very good, and since there are so many people who use ASP.NET, it's easy to get responses to questions about ASP.NET in the broader community.