I had a very selfish reason at home for setting up a smart plug:
Automatically turn on my espresso/cappuccino machine so it is warmed up/ready to go when I get out of bed. Got the device working but it was a bit of a wrestling match.
This lead me down a rabbit hole of what smart plug to purchase. I had difficulty locating specs for them and found very few to be United Laboratories (UL) certified. Some are Electrical Testing Laboratories (ETL) certified which only covers a subset of UL requirements and not my "cup of tea".
I ended up going with a "Belkin" Wemo 15 amp mini smart plug. The install was rough... on both Android 11 and iOS 12. Made it all the way through joining the network with "install completed successfully" message and then the app kicked a "cannot connect message". Neither the Android or iOS Wemo app could reconnect to the smart plug. I had to factory reset it and try again.
The second time, I left the installer in the failed state while calling support... after a few minutes a message appeared in the app stating that a firmware update was available. I installed it and everything got happy. I'm sure hoping it will remain that way after a power outage... fingers crossed lol
When my support call got transferred to a human, we got disconnected within ~10 seconds. I called back a second time and the same thing happened so I gave up!
Haven't used too many Belkin products over the years so don't know if their support is really that bad or if it is just the acquired Wemo group (that requires calling different toll free number).
Have others had good/bad experiences with these new-fangled timer gadgets?