Good choice.
Of my "top three" choices for a defensive shotgun, the Winchester hits all of the high points, especially having a better price.
In case you're curious, my Top Three shotguns have to have at least a 5 round capacity and an 18-21" barrel. I consider these three to be pretty close to even when it comes to performance;
Winchester 1300
Remington 870
Benelli Nova
The Nova has a carbon-fiber receiver and is extremely light and fast handling with a short barrel (most often seen with rifle sights). The drawback is that recoil is pretty stout. But with even a short Benelli Nova I was still doing pretty good taking out those murderous, rampaging clay pidgeons!