We wrote in our open source AWS Lambda blog post on the 27th of February about the then recent support for Lambda functions that access resources within a VPC. Our perspective on that announcement is that serverless computation is becoming more appropriate and accessible for enterprise and can be adopted in more use cases.
One of the issues we highlighted before summarizing that blog post was that AWS CloudFormation did not yet support the VPC configuration for Lambda functions.
We love Lambda and are happy to see it improving leaps and bounds. Going serverless can help your organization save big on your AWS bill. Consider such options on upcoming projects.