At this point I really have no idea how much of the awesomeness I see in Visual Studio is coming from ReSharper and how much is actually Visual Studio itself. In the past, it was nearly 100% R#. Now it seems more like 50/50.

The only way I ever find out is through blog posts like this where they announce "new" features that I'd already been using for six years such as the "introduce variable" and "extract method" refractors mentioned here. Evidently that was ReSharper.

Makes me think I should go read up on what's new in R#. I bet there's a bunch more cool stuff that I'd never learn about until VS.NET 2020 if left to my own devices.