I used a friend's almost identical one (minus the electric start) when my power went out, and it was easy. I was do impressed, in my uncertainty on which brand and type to get, I bought one, just upped it to push button electric start.
Easy to set up, starts nicely with push button. Excellent balance between size and power. Small enough to move easily, runs the fridge and a few other things. About 7 hours on 1/2 tank (2 gallons) when running fridge and battery chargers.