I have 7 nest minis and kasa plugs around the house acquired from friends and relatives that have found them frustrating. I agree completely. Assistant sometimes works, sometimes interprets the same request in a different way entirely. Radio is inconsistent. Turning lamps on via routines mostly works. Setting the volume of multiple minis mostly fails. So many other bugs on just the simplest of devices. I know it's complex but it's not improving. I feel Google are getting more from this than I am