While Google home is great, it along with others like it, mine your digital data, with HA you can keep it all to yourself, although many people do use Google and Alexa still so there's that. But HA will still work when the internet goes down and there are alternatives to google and Alexa. Plus you are not locked into certain vendors that Google supports and if they decide although its doubtful, but they can drop support for things and then you'll be left with tech that doesn't work. I personally love the actual automation that you can accomplish with HA, and even though you say that you have no routines, you do.