Had one for 5 happy years, would love another.
The reason many are so loud is in part due to the backyard porting cowboys but also the fact that the exhaust temps are so high that it melts the packing in many of the cheap locally made mufflers. No packing = horrendously loud.
Mine had a stainless exhaust with steel wool packing in the(handmade) muffler. Never got obnoxious and sounded good all the time.
They simply need to be looked after properly, fail to do that and you take your chances.
In the old days...if people liked them, you could actually buy one for a couple of grand, not the ridiculous prices we have now. A few less dickheads about(get a rotor, hoodies etc)but they still had a habit of going missing.
Guess some things never change.