No doubt that Drupal VM is the most popular Vagrant and Ansible based environment for Drupal development. In the earlier versions it used to be little tricky to change the latest 7.1 version of PHP to 5.6 but now it is just a matter of changing php_version value.
DrupalVM is the tested and proven quick way to setup a complete development environment for Drupal. Here is a list of steps that one can follow to get this environment up on Ubuntu 14.04.x LTS operating System. Just run "vagrant up" to setup whole environment.