Google appears to be pursuing a coherent vision for a consumer supply chain, and is cobbling together parts of that vision, but I don't think they can be successful without a stronger core platform. The Robotics and AI and Analytics startups that they are scooping up would be amazing acquisitions for a fast growing retailer with existing supply chain operations (like Bi-Lo, Michael Kors, or H&M), but they are too specialized to be able to form a base for a retail expansion.
I have looked at them to use them as a marketer, not as a logistics solution.
Further, customer support for Nexus - my one issue with them was also satisfactorily resolved quickly.
I understand that my experiences are not necessarily the norm, but I see this quip posted regularly and I don't know if people who post it actually have any experience.