Ya it definitely adds a distinct flavour. I always think back to the difference between cooking a steak over a campfire vs BBQ or grill etc... You get that smoke flavour that otherwise does not come through.

Now smoking meat or fish etc is a bit of a different process of course, however I feel like they add the same kind of quality of tastes on a basic level. obviously your campfire steak isn;t going to stay for 6 months after you cook it haha