This is just painful to watch.
The dual-tube feeding system for a shotgun is an innovative idea but not one that I would call “ready for prime time” at this moment.
The Benelli M2 is still very much the “gold standard” when it comes to semiautomatic shotguns.
I’ve had good experiences with the Beretta A300 even though it is a straight up “sport shotgun”.
The Saiga-12 is a system with a lot of potential BUT they require a fair amount of customization to really be up to “fighting shotgun” specifications.
The availability of quality magazines has also hindered the Saiga platform across the board.
Pump action shotguns like the Mossberg 500 and the Remington 870 are always good to go.
With 870 and 500 clones made by other companies be sure to read the reviews prior to buying one.