Ferret smell????

Hii!! so I’m thinking of getting a pet ferret!! my main concern is how they smell. is that just like a myth? cuz I heard they don’t really smell that bad if they have a clean environment and a proper diet. and I know not to bath them with shampoo!! I’ve done a little research (100% need to do more).

also please tell me major necessities or tips you wish you knew when you first got your ferret. :)