ms is maintaining project.json based sdk too with version preview2, so devs can continue to work, no need to switch to new msbuild soon (wait until is done).

ide are good (intellsiense/debugging), especially vscode, but sdk works already from command line and text editor.

about docs, check the new docs website (oss, accept pr):

- https://docs.microsoft.com/en-us/dotnet/articles/core/

- the getting started doc https://docs.microsoft.com/en-us/dotnet/articles/core/gettin... has tutorial for everyone (cli/vs/vscode/xam), and all os. is not vs centric