Sounds like a good setup. It seems like you could also use it for getting clean power for sensitive electronics on the go. Solar power on a high quality inverter is probably pretty stable but I probably wouldn't want to run a laptop straight off a generator circuit.
I used to own a propane backup gen and I loved it. Quieter and cleaner than gasoline and you can stock up on tanks and store them for a long time. Plus propane is useful for so many other things.
yea the xantrex I have is prosine so its clean for sensitive electronics. I also have a yamaha EF2400i generator that provides clean power for electronics so really my power is clean no matter where its coming from. Solar direct to inverter isnt a great solution but with the battery bank I have alot of watt hours to play with.