That is the one. Lots of other smaller gennies out there for about half the price but I would go with the Honda if you can afford it. I think for what you are looking to do, it is the perfect size. Most people just run extension cords into the house which works but it tends to get pretty bad having them laying all over the place. You can even power the furnace with an extension cord if you wire a DPST switch and male plug into the circuit.
You can do something really bad like backfeed the panel with a double ended cord...if you don't mind getting killed. I've done this and have one as an emergency backup but have also pulled the cord from one of my outlets when I was half asleep. I said to myself this cord with male prongs is live as I held it in my hand. Whoops!
The preferred way would be to get a transfer panel which are pretty cheap. Maybe set you back $150 tops. You will more than likely need to rewire the plug on it to be a 15a 110v setup as most come with 240v arrangement. Again, super cheap if you can do it yourself. Then you can pick 5 or 6 circuits you want to power up with the genny. I personally use furnace, fridge, bathroom, kitchen, and living room circuits. I'd probably consider necessity to have outside lights for security as well. I prefer to run the furnace with the genny as oppose to using something like a kerosene or propane heater. I never sleep well knowing that something is burning inside the house without a fireplace 
