The CloudFormation cluster generator tool they have is really cool. (http://cloud.memsql.com/cloudformation) The templates it generates are pretty complex, I wonder if that is hand written or using some kind tool.. would anyone be able to shed some light on how they did it? Do you think most of it is hand coded? I've been playing around with the .NET SDK in VisualStudio 2013.. it includes a cloud formation project type, and you can type out the JSON with Intellisense which is pretty cool.