Had a Coleman for 10 years, and it did well but began burning oil after only 20 -30 hours of use, and if not started at least monthly - yes, I use fuel preservative - became a real bear to get going. Bought a higher output unit, and settled on Honda. The Honda (full Honda, not just motor) is subject to a fair mark-up, and the best deal I could find was Mayberrys.com - who were prompt and as advertised. Anyhow, the home use Hondas, not the less expensive industrial line (be careful - Honda had 3 lines of generators - and the quiet home line-up is by far the most expensive - so a "Honda generator 4000 watts" means not much, you need specifics). The home line Hondas have built-in line fault interupters, governors to lower engine speed appropriate to line demand, and so on. I particularly like the propane kit conversion option - I'm "hard wiring" one to my house, and can run the generator off my large propane tank - no need to haul gas, worry about the spark plug or carb gumming up, and so on. The battery start-up that comes on the larger generators has an attached trickle charger. So, when your power fails, the battery kicks over the generator, and such runs as long as your propane tank will allow - weeks in my case (I'm in the hurricane zone - coastal SC - had no power for 8 days after Hugo in '89, and neither did the local gas stations, stores, etc - learned my lesson - no cooking except the outdoor grill, no hot water, no dry clothes, no refrigerator, no nothing & a good stock of deer and fish in a freezer were spoiled within 2 days - so, I've converted to a gas stove, water heater and oven, and put in the Honda for the rest - not that I ever want to see another major hurricane - took 2 days just to chainsaw the stuff blocking my driveway). Good luck - when you really need a generator, there is nothing else that will substitute, and if something goes wrong with your generator during a prolonged power outing, there's no way you'll get service, or even a store open with parts.