I am so scarred from trying to develop an ASP.NET vNext website using the VS 2015 preview releases. The project templates never synced with the tagged code in g

I am so scarred from trying to develop an ASP.NET vNext website using the VS 2015 preview releases. The project templates never synced with the tagged code in github, and there were endless bugs. Is it stable now? By that I mean, can I reliably override one of the ASP.NET vNext libraries from source?