Microsoft just announced a new cross-platform editor that has many of the features of Visual Studio called Visual Studio Code. I downloaded it on my Mac to try out with a Xamarin.iOS project and see if it works. I was pleased discover it works out of the box (as far as I can tell on a first look).
Visual Studio Code works against files and folders. When you open a folder where a Xamarin.iOS project lives, all the files load fine and features such as links to references and even intellisense on iOS classes work great.
Here’s a class that implements a UIView subclass for example showing intellisense on CALayer:
You can download Visual Studio Code at: https://code.visualstudio.com/Download
mikebluestein.com 
Loving this! I hope Xamarin has greater integration with this in the future.
So can you actually run the project or are you just showing that intellisense works?
Have you found a way to configure the launch.json to run on iOS or android device, on the debug section?
WoW… that look cool! Will it work well with Xamarin Indie license under Mac?
It’s not running! Just intelli sense. Cannot build, run and debug.