just my opinion but I love NIDs, As a duck hunter who uses doubles they are strong and in my opinion look much nicer than a Browning BSS or a Winchester 21.
As for build quality and strength the NID beats a model 21 too, I dont see NIDs with barrel hangers falling off of loose ribs or with flaking blue (common on the 21's) and John Olin went to Ithaca for the 3 1/2" 10 gauge not his own company. That says a lot, at least to me.
I love my big 10 and my 12 as well.
If all you guys were buying them I wouldn't be able to afford them, so thank you