The feature set is impressive and I'd certainly look into this if I had the kind of home that could benefit from this much automation.<p>I do think it highlights a problem with using Polymer out of the box though. Like Bootstrap in its early days, Polymer makes it <i>very</i> easy to quickly throw together a fairly polished and professional looking interface. But as more of these come online this style is going to become increasingly stale and generic. And since the design language of Material is so pervasive and rich I think it's going to take a fair amount of work to customize it enough to differentiate an implementation without destroying the integrity of the design. Just tweaking the theme and accent color isn't going to be enough to cure you of looking like a rebranded Google app.