I did not handle the initial setup. It was usually the DevOps team who sets it up. I have no idea about the process.

The DevOps team also manages any maintenance that may be required. 

You just have to enable the API features, like every other Google product.

The initial setup was straightforward. It's not a complex one.

The initial app engine came out of the box and the setup was so easy. The documentation for setting up is also great. We deployed in-house.  

The initial setup is not complex but it would have been better if they had a few tools to help migrate off the Legacy platforms that we use. Deployment took a few weeks and we did it ourselves. 

The implementation involves setting up the correct metrics, which is something that needs to be properly researched and tested.