@ben @dalias I have used Kasa, Sonoff and Tapo units. The Tapo P110 was completely unfit for purpose. Every single one failed within months. None of my P100s has done so.
However, all are vulnerable to failure if you lose Wi-Fi but they retain enough power to turn on/off - - they click like mad looking for it. OK if you're home (had such an outage recently--low mains voltage). If I'd been away I suspect they'd be kaput after a while.