I try them a few times a month, always to underwhelming results. They're always wrong. Maybe I'll find an interesting thing to do with them some day, I dunno. It's just not a fun or interesting tool for me to learn to use so I'm not motivated. I like deterministic & understandable systems that always function correctly; "smart" has always been a negative term in marketing to me. I'm more motivated to learn to drive a city bus or walk a postal route or something, so that's the direction I'm headed in.