Yep, I have 2 of them. The kids love them. I had Ubi's in the past (1 of 5 is still functioning at this stage), but the kids could hardly ever get Ubi to trigger. Alexa is much, much better with the voice recognition, but there was so much you could do with the back end of Ubi. A combo of both sets of features would be perfect. Maybe that will be Google's Home solution.
I have 2 dots on order (due for shipment in a month), and would then probably get a 3rd after that, but if Google Home announces more details, I might cancel those orders. Strike that, I just read that Google doesn't plan on releasing an API initially, so unless they plan to have some sort of rule tool, IFTTT etc, Google Home may not be that great for HA integration for a while. At least others are working to integrate Alexa in the HA world. Of course, adding these devices assumes that I will get a WW Relay and Sensors in the not too distant future . Fingers crossed they get things sorted soon.