Hi Chandler! it's probably worth mentioning that we will be also opening up our lldb-mi based debug engine which will allow you to debug any lldb target from Visual Studio. And we'll continue to contribute back improvements to lldb-mi. Thanks, Steve Carroll, VC Dev Mgr
You can definitely build obj and lib files and link them with files built by MSVC. That works well.
We also support putting DWARF debug info (the standard format) into the binaries, and the LLVM linker LLD will link them and you can debug the resulting program with the LLVM debugger LLDB (or GDB for that matter).