In AWS, only the very core Infra-as-a-Service that they dogfood can be considered "good", Everything else that's more Platform-as-a-Service can be considered a half baked leaky abstraction. Anything they release as "GA" especially around ReInvent should be avoided for a minimum of 6 months-1 year since it's more like a public Beta with some guaranteed bugs.

In AWS, only the very core Infra-as-a-Service that they dogfood can be considered "good" - large chunks of which are, by the way, written in Java. I think you are proving my point...