Nice to not have to worry if your shotgun has to be spotlessly clean to keep working. Especially when you may have to shoot 200 plus shells in a day and cleaning time is at a premium.
They don't have to be spotlessly clean to shoot well over 200 shells, believe me. You just have to know how to clean them.
Not being a wise guy here. Ferinstance a common problem I've seen is carbon buildup in the gas ring which eats O-rings. Often it's smooth and looks like blued metal so you have to know what you're looking for. And it takes a lot of shooting for the carbon to build up that much. A few twists of a gas ring brush during routine cleaning prevents buildup but how many do that.
I wouldn't select an 1100 for class and there are shotguns that handle (for me anyway), three times better but at three times the cost. But for general use the 1100 is a pretty good deal.