First of all, this thing is VERY heavy, it isn't a tool you'll be taking on road trips, tailgating, or casual weekend camping trips. To give so some idea of how heavy it is, it is delivered on a pallet. Set up is easy but you'll definitely need two people to get the wheels on and you'll want those wheels on fast.
Once you've put the wheels on and use the fold up handle, one strong person can move it around over flat, smooth terrain but if you want to move it over rougher, uneven or sloping terrain you'll be much better off with two people. The unit comes with a quart of oil to get you going and according to the documentation, you can use full with up to 10% ethanol. While not electric start as indicated, the pull start was smooth and easy.
If you are using this as a backup, you can power emergency circuits in a house easily, run multiple appliances, and all the lights you need (obviously, you wouldn't want to try and power the whole house the way you do with regular electric). It'll run tools, appliances, lamps, just about anything you need and it has plenty of plugs to get the job done. You can buy a 30a cable and get more 110 outlets if you need to.
This is loud, several people have mentioned it is about as loud as a lawnmower and that is a fair assessment for sure. The roll cage is strong and solid, you could easily chain to a pole or tree to keep people from easily making off with it.
On about 3/4 load, I got just over 5 hours on a single tank of gas. I really like that this has an oil and gas gage so you can quickly tell where you are. It also features a low oil, automatic shut off feature that keeps you from running out of oil and seizing the engine.
I'm a fan of this monster, it'll definitely get the job done.