I had a 2", mid to lower range box lock, exactly like smallbore describes. It was neat and had that magic wand factor we all look for. It was made for a person built like my grandfather, 5' 5" to 5' 7", 150-175 at best so it did not fit me that well. Still it was a joy to carry and almost as much to shoot. The birds and clays were well hit. It did like RST and custom loaded Federal Paper shells. After a few years the magic died and the gun just sat in the gun room too much like many others. So dow the road it went. But to be honest just about every gun I pickup to buy does seem to have magic in it for me, most of the time.
"16-bore ammo is easier to get and there is a wider range available."
Now when you site ease of finding 16 ammo as a reason to buy one verses another ga. you are getting into hard to find ammo. Most decline the 16 because the ammo is scare on the shelves. 2" ammo for the most part is order only on line. Just not going to find a few boxes on any shelve in the back of beyond.