Mine wasn't very noisy either, I just wanted it so quiet the noise police in the National Forest wouldn't know I had it on. Unless you walk up to the camper and are standing beside it, you can't tell I have at the generator on.
Some of the tree hugging, hairy armpit, granola types have taken over the rules committee in some of the NF campgrounds. They actually have "generator free" sections in many of the campgrounds. I have pulled into campsites and the sight of the diesel truck and 40' 5th wheel has caused a couple of people to pack up their tent and granola into their Prius and move.
A couple of weeks ago someone actually ask me to keep my dogs in the camper as they didn't like dogs. At the time they were sleeping (tied up) under a tree in the campsite.
Anyway, we try to be as quiet as we can be and the generator compartment insulation makes a big difference.
John