Having worked with .Net for many years, I always had a bad feeling expanding my experience with a closed source, Windows-only platform (I liked the C# language and tooling, though). I kept looking for an open source, cross platform language with the same features and characteristics as .Net.
.Net Standard and .Net Core being open source (MIT licenced), cross-platform, more performant than .Net Framework and Mono and being supported by free cross-platform tooling really gives me peace of mind in this regard.
I really enjoy C#, .Net and VS features, but man VS2017 has been broken for a while. Numerous 5 year old bugs either not fixed or coming back. (SQL Schema compare not authenticating, Intellisense not working, compilation errors not displaying in the errors window, winforms designer messing up form layout when opened on high DPI screens, slowness and freezing on medium-sized projects and decent hardware, the list can go on and on)
MS resources and focus are now on VS Code. Which is a shame because I'm sure the market for companies that pay VS Pro/Enterprise + Resharper is not small
"Nordics" covers a pretty diverse area regarding climate and quality of local timber. Most houses in Denmark (southernmost part of "nordics") are built with bricks because wood has a tendency to rot in our climate. Also, we experience almost no earthquakes.