[doh]

In my experience all their tools have a pretty high barrier of entry as they require to learn in most cased a new language or at least alter your thinking. But once you master it, most of them are kicking ass.

For example we use Packer daily and it's just fantastic. Yes, once you need to debug it, it's a pain in the ass. Also it makes some basic assumptions for you (for instance it turns off project wide ssh keys while provisioning [in GCE], so you have to manually add them anytime you want do something).

We also use Terraform daily and it works well. Couple of bugs now and then, but it does things so effectively that once it works, you save a ton of time.