At the early stages, I was asked by the AWS team to come in and consult on AWS gateway and Lambdas. This was my 2-cents I gave to them on everything: https://www.linkedin.com/pulse/aws-services-right-you-owen-rubel/

They basically agreed that they are only for ‘one-off’ apis and researchers. Since then their marketing arm has tried to push them as ‘enterprise ready’… which they are definitely NOT.

People believe it though simply because of the brand attached to the product; alot of their products are only middle-of-the road and meant for sustainability, not for putting your ENTIRE ARCHITECTURE on.