We run many microservices on Lambda and it has been a pleasant experience for us. We use Terraform for creating, managing environment variables, and permissions/log groups/etc. We use CodeShip for testing, and validating and applying Terraform across multiple accounts and environments.
For logging, we pipe all of our logs out of CloudWatch to LogEntries with a custom Lambda, although looking at CloudWatch logs works fine most of the time.
There's a cabinet at our local arcade (Logan Hardware, Chicago), and it's been awesome. We have a Facebook group for serious player meet-ups and a monthly tournament. My team won the first.
For logging, we pipe all of our logs out of CloudWatch to LogEntries with a custom Lambda, although looking at CloudWatch logs works fine most of the time.