Yes, if you're satisfied with the C++ standard library alternatives included in this SC and do not plan to use C++ Standard Library in your project:
Yes, if you disable the Standard C++ Library, you can also disable Exceptions and RTTI
Yes, this library contains debug visualizers for Containers and Strings for clang
and cl.exe
(Microsoft Compiler). Using them will make your life easier.
Build is setting them up automatically for XCode and Visual Studio projects.
There are no plans to provide ABI stability.
Each library declares its own API stability, but as the project is very young, expect breaking changes for now.
At some point API will stabilize naturally and it will be made explicit for each library.