I am a big fan of these Kasa smart plugs. Never had a problem with them until I had to change wifi password. 

I enabled ISP provided router wifi as "old" wifi. I changed EERO SSID to something new. I found out Kasa does not allow change of wifi through app. 
 

First, if this was my company, I would not want customers to be screwed by a wifi change if for example they had 10+ kasa devices. I would want them to be able to change that setting through the app and in a bulk manner optionally. Not sure what is corporately dysfunctional within the Kasa division. Appears something is. 
 

Second, I do hard reset on the fist plug and it will not add back. I had deleted it in the app, logged out from app, unplug/plug outlet, uninstalled/reinstalled app, and it still can't find any wifi networks in the neigbourhood. Seriously? I try enter login via hidden SSID. No go. 
 

I am a software engineer, which I imagine a significant chunk of smart home users are. Because I can't imagine someone non-technical having a hope in hell of overcoming the traps companies (divisions) like Kasa unwittingly lay for customers in the less common use cases. 
 

Can anyone recommend a home smart plug that does a lot better than Kasa in these deficits?