I think the NCS2 has potential.. it's still early though. One thing on their roadmap is to support ARM, which I view as a must-have for low powered edge applications. Right now it only works with OpenVINO and certain x86 systems. So I view the real use cases coming when it can be used in settings with limited power (and limited or variable network connectivity).
I got one recently and I am not convinced, but I suppose someone on HN might have legitimate use cases.