As to indoor use: any camp stove is tricky in that situation; carbon monoxide and fuel leaks can ruin your entire day. I prefer to use it in my porch or carport, never blocking emergency exits, and with fire extinguishers at the ready....
My $0.02.
I'd only use one outside. Like anything that burns, it produces carbon monoxide-- a deadly odorless gas. +1 on the fire extinguishers
TRO