I haven't tested it but I'm pretty sure Visual Studio 2015 does not support the full C++14 standard yet. Microsoft takes their time to implement C++ standard, for whatever reason. There has been two Visual Studio released between the release of C++11 and their implementation of constexpr, a C++11 feature.
That being said, Visual Studio 2015 is likely the best IDE you can put your hands on, and it is by far the most used development environment in the game industry. In fact I'd say that for any language Visual Studio has first class support for (which means C++, C#, VB.NET, F# and TypeScript) it has become the de facto development tool. Microsoft has recently released Python tools for Visual Studio and I wouldn't be surprised to learn that it's now the best development experience for Python.
For the sake of objectivity, I'm not going to say it's flat-out better than another one, but umm... let's just say that as someone who is working exclusively on OS X, iOS and Linux these days, I really miss working with Visual Studio.