Switch/Plug Reliability, What failures have you noticed?

I’m looking to deploy switches, dimmers and smart plugs to a home that’s 6 hours from me and reliability is important. I just had someone tell me that 7 of his 8 Kasa switches or plugs died… only one hanging on. I would like to gather additional feedback on the success or failure of certain brands. For example, I’ve heard that Lutron switches are rock-solid, they just work and the people using Radio RA seem very happy. So, what are the success stories,which products are built to last and which should be avoided?

Thanks,

R