Gary bought the Wink Smart Home Hub, and recently it went offline. Leo says that's because the company ran out of money and converted to a monthly subscription for $5. But according to the website, there is a known issue that they are making a fix for. They say it'll work locally, as long as you don't unplug it.
There is an open-source option called HOOBs that works with most environments, including Google Assistant and Amazon Echo. There's also OpenHab home automation software. You can even build your own server with a cheap Raspberry Pi, and you'll never have to worry about paying a monthly subscription.
Check out Stacy Higgenbothem's page. She's got her finger on the pulse of home automation.