We evaluated Ansible — it's also good. The way Ansible works is a bit different than the way Puppet work. That's where we struggled with Ansible. Ansible is the kind of solution that only requires a one-time configuration. If we want to build a new server, we can easily build it with Ansible and Ansible will do all the work for us, but it's the compliance part that was missing from Ansible — it wasn't a built-in functionality. With Puppet, if you have built a server and someone changes something, within 15 minutes, Puppet will run and revert the changes. So, it's the compliance part that we like about Puppet. 

Yes, we compared vs Ansible, Salstack and Chef

We looked at Chef and Salt.

Before choosing this product, I evaluated a lot of options.