Buddy of mine has one and it is awesome. It is super quiet and starts pretty easy. They are big $$$ though. Unless you are using it all the time or are in a situation that requires low noise you would be better off buying a cheaper generator.
The EUI inverter series are quiet. Most of my camper buddies have the 3000 which is 2000$. They have a EUI 6500 but its like 4500$ bucks and I don't know anybody that has one. They start super easy and and reliable.
I went down to our dealer today just to talk and figure prices. Since I spend so much money at that place anyways they gave me a price I couldn't refuse on a 6500 watt unit.