With a little practice, feather burning is easy and I think makes the quietest feather. The burned rounded edges make less noise than the sharp edges of a cut feather. No studies to show it but I believe it.
As far as the smell, it's kinda like Hoppes Number 9. It's a good smell that will bring back a lot of memories. I still burn mine in the basement as I like the smell. Kinda like the fire in camp.
Now my wife and kids aren't so fond of it.
You gotta do a little tinkering with the burner over other methods, but the end result is better than the other methods I have tried.
Good luck!