The BPS is solid to be sure, just like the Ithaca M37 is and they're stupid reliable, very smooth and amazing guns (both the BPS and M37)
That being said, would never choose either over something like an 870 or 500/590 for defense. Both the Browning and Ithaca load and eject from the bottom. Neither has an ejection port on the side to easily port-load the gun (this is a giant issue for a gun with such limited capacity - all shotguns have limited capacity). With the BPS, as mentioned, you
can roll it over, fineness the action back a bit and manage to slip a shell into the chamber, takes practice and even then a lot (relatively) of time, nothing like dropping a shell through the side of an 870 or 500/590. The Ithaca just WILL NOT take a shell through the bottom into the breach (not saying you
can't do it, just that it'll take a few days to get it done). All that on the table, the Ithaca 37s and BPS are AWESOME guns, just not anything I'd pick over a good gun with a port on the side, that is an absolute must on a defensive shotgun (as is a good white light).
...and since we on the subject, a bit of "encouragement" for y'all to start a good M37 collection.
...this is from a while back, but you get the idea.
These guns are simply amazing, they're a ton-o-fun and
can be found very inexpensively.
As for a BPS, this one is kinda a "work in progress" 10ga...
...kinda like lookin down a 10ga sewer pipe.
Anyway, for a home defense shotgun, get a good gun (that you can easily port-load) and a good white light on it.