I didn't find the "move class" feature while I was trialing, but it does sound pretty handy.
Symbol search is incredibly useful, that was a revelation when somebody told me about it. But Visual Studio has had that since at least 2010, I think maybe 2008. Resharper's is a bit more complete, but I think the VS built-in one is a bit faster. The VS native implementation is Edit -> Navigate To, the default key combo is ctrl-comma, but I think Resharper takes that combo for its own purposes.
Next big thing is navigation. Go to type, go to symbol and go to file are super quick and means I never go to the source tree to navigate the solution.