Have had once since the beginning of the year and there is nothing that I don't like about it. There is no choke in the barrel that comes with it (18") and the only thing I've run through it so far are slugs. The range I go to is an indoor range and does not allow buckshot. As soon as I have an opportunity, I will run a couple of boxes of buckshot through it, just need to find the time and location to do so.
It's a black matte finish (parkerized) and it has not shown any signs of wear.
As for cons, I really can't come up with any? I know that the barrel can be swapped out for hunting purposes, but I have no intention of doing so. This is strictly a range/home defense gun. Honestly, it's a lot more fun than I thought it would be. Range time is a blast!
Between the Remington 870 and the Mossberg 500, I'm really glad that I went with this one. I like the slide release location and safety location on the 870 more than on the Mossberg. Just my opinion, but I can't imagine you not being happy with the 870.
Good luck with whatever you decide to go with!