I just bought its rival, a Marlin 336 30-30. Many people think that the Lyman receiver sight is better quality than the Williams, but I don't know first-hand. If you want a really cool look and even better function, look at a tang-mounted sight. I still haven't decided whether to go scope or irons.
Iron sights are more traditional, but you need good eyes and skill to use them confidently on game at more than 100 yards. That's where the magnification of the scope really makes life easier. But unless you buy a vintage scope, it won't have the authentic look...if that matters to you. Nikon, Weaver, Redfield/Leupold, there are lots of suitable, good-quality scopes available.
Iron sights are more traditional, but you need good eyes and skill to use them confidently on game at more than 100 yards. That's where the magnification of the scope really makes life easier. But unless you buy a vintage scope, it won't have the authentic look...if that matters to you. Nikon, Weaver, Redfield/Leupold, there are lots of suitable, good-quality scopes available.