No personal experience but 2 friends of mine who went from Perazzi and Beretta respectively to this model are completely over the moon with their choices.Yes that is the O/U model, here from Guns Unlimited it is the combo with a bottom single bl. and hard case.
Not the same combo. I figured aftermarket tubes would thread in by hand and it was inherit to the B design.WadHopper, great evaluation, except my 2017 unsingle is adjustable at the rear of the rib also. Yes it rattles, quite annoying. The factory DS choke tubes do require a wrench, because of a brass seal ring, the aftermarket I patterned do not require a wrench. But also didn't pattern as well as the Browning.
I have had mine for 2 years, going on 25000 trouble free rounds.
I have a 725 sporting that had the same issue. The JP pin has about 1500 through it with no issues, time will tell.