[breischl]

A lot of this has been at least partially addressed since VS2015. There is built-in code search (ie, "find me any language construct with these letters in it"), there's support for basic refactorings (rename, extract method, extract interface, etc). I got used to all the built-in stuff before someone talked my into Resharper, and found most of the built-in stuff is actually better these days. Faster, anyway.

There's always been codegen support with snippets, although I never found too much need for it, personally.

The tools ecosystem is pretty weak though. I always found TestDriven.NET to be the best test runner, although Resharper's is OK if slow. I actually like NUnit a lot better than JUnit, but YMMV.