The Nexus Root Toolkit by Wugfresh is the most comprehensive and easy to use tool for modding your Nexus device. With the tool you can easily set up your ADB and Fastboot environment (ie you don't have to do the full sdk install on your own), it guides you through the process of installing drivers, unlock your bootloader, install custom recovery, root your nexus, install the latest firmware to your nexus, and unbrick your phone!
Wugfresh has announced that he will be updating the tool. The next version will support Android 6.0 Marshmallow. Support for the Nexus 6P and 5X will also be added. Wugfresh even said he will be bringing some new features and improvements to the tool! Check back here as we will update you once the tool is updated.
via @wugfresh