I have a generac 6500 watt, and it has done me well. It is 11 years old, and has only had oil changes done to it, has always been out in the weather. It has just recently started causing me trouble by making my surge protectors inside go bad. It still runs and works, but something is not right. It is also VERY LOUD. So I bought a used 7000watt, from my mother in law for 200 bucks, they only used it for one storm for 1 week. But have run it every month just to keep it up. Don't remember the name, but it has a Honda 11 hp engine. Still LOUD, but not as bad as the generac. Had I taken care of the generac, it would probably last me another 10 years.