So far it's universally positive, but the AWS folks need to finish being furious and stop seeing red long enough to work their keyboards to yell at me.
DtnamoDB is a pretty poor DNS resolver, but @alexbdebrie is the person to talk to about it. I wound up hiring him to fix a thing on contract; strongly recommend.
If Matt looks like the kind of person you'd enjoy having in your company, I'd suggest reaching out sooner than later. His greatest challenge right now is articulating exactly what he wants to do next; once he solves that he won't be available for long.