Well, I'll tell you what I know, and what I heard.
I've had an 1100, not an 11-87, since about 1976. It's an LT-20, the lightweight 20 gauge, and I've shot it many, many years dove hunting with nary a hiccup. No o-rings, no nothin'. Just keep feedin' it shells and pullin' the trigger. I'll keep it till I die.
Now in recent years I've heard that Remington's QC has suffered. Their rifles aren't put together as well, and don't shoot as well is what I've heard. I attribute that to them making tons of models now instead of a 700 ADL, BDL, and a 788 or 600 or some low-end model. I was in [beeep]'s the other day, and they had a customer on the phone who had bought a 11-87 from them, and the customer was complaining about his ventilated rib not being straight. Now, this isn't exactly a hidden part we're talking about. It kinda sits right up there in plain sight on top of the dang barrel. Where was the QC? How did that bad boy get passed with the rib not being straight? Granted, this is anecdotal, but I think it speaks to the general impression in the firearms community, and apparently not entirely without merit, that Remington has some issues. Once upon a time, Remington was the standard by which others were judged, and to buy Remington was to buy a sure thing. Any more, it seems like a crapshoot. The last shotgun I bought for sporting purposes was a Mossberg 835. The last rifles I bought were Tikkas and Savages. I see Remington has brought out a 1100 G3 in a left hand version. And yes, I'll consider one. But I'm gonna have to think on it some, and that's sad, because it's something I never had to do in the old days.