I would echo what @deon.korb has said. Although, I probably rely on it a lot more as our ISP has been pretty reliable, and the 4 hour lease time (I think it’s still 4 hours?) is more than enough for any short outages. I have been considering taking the leap to Node Red or HA though and use Maker for the pretty stuff 
A few things we use it for in our household...
- Electronic configurable dashboard
- URL Casting between Ignition Clients
- Asset tag tracking
- Logging fuel usage
- Temperature & humidity tracking
- Light control
- Garage Door control
- Finances
We mainly use the Perspective app via mobile, but I do have a nice floorplan layout for the house lights 
Current project is to create some nice charts for the fuel logging, and to start logging power consumption/generation. Oh, and experimenting with RTSP feed cameras with the very helpful module: Automation Professionals' Image Streamer Driver Module - #62 by pturmel
More than happy to share what I have, if it isn’t already public on the Exchange.