Curious if anyone out there is using Ansible and what your thoughts are about it

I just know it's great. We use it in our office.

it's quite good. a bitch to set up but once it works :)

tricky to master but once done it will give you super power.
In our case we put a full infrastructure on AWS ( provision our App stack platform, php, apache... , then deploy software code, create 1 RDS + secured ELB + 1 Elastic cache + 1 elastic search + 1 ASG with alarms and with a launch configuration basef on the previous mentioned ec2 instance ) with just ONE click:
ansible-playbook deploy_infrastructure.yml

Know this is waaay late to give feedback, but love it.