I've been using an 11-87 for a looong time for ducks and geese.
Runs like a Timex watch. Keep it clean, lightly lubed, and good o rings, and it won't fail you.
Mine loves Federal speed shok shells, and I use number 2's on everything 95% of the time. The other 5%, is BB's. A factory extended, modified tube, hold awesome patterns, and I used blue loctite to keep it tight. I never change it.
I don't sky bust, or have to take long shots, so it works great in my situation.
Great gun, enjoy it.