We have the google home, DD bought it for me for christmas. Very similar to amazon echo. After a few weeks using it we LOVE it. amazing how many questions it answers immediately. And I now have all my music able to be played in any or all of 5 rooms via google home, DW uses it for a Kitchen timer, I've asked it how far to a location in town and how long and it comes back. Even will tell teach you how to speak in Pig Latin.
Personally I think all the security issues are a NON issue in reality. Now that we have one unit, I suspect we will add a few more for the family room and garage.