A 12 ga in and of itself is generally a good choice for home defense. My personal preference is the Mossberg 500 with ONLY the pistol grip and without the fixed stock.
This is 10" shorter than the one you posted
A lot of times, it comes down to personal preference. I prefer to have a shorter shotgun when moving through a house/building as CQB is pretty quick and fluid. Going through doorways and down the hall with a longer weapon is more difficult. Others may prefer the comfort of the stock tight in their shoulder. Some want semi, others prefer pump, or don't care.
However, you pictured a semiauto and I posted a pump action. If I were going to get a semi auto and was looking to spend ball park what that one is priced at, I would get a Saiga 12 with a 20 rnd drum....and see what could be mod'd to make sure there weren't any feeding issues. Of course you could always try to get your hands on a Spas 12 that is selectable pump/semi.
You have to also take into consideration what scenario it most likely will be used for. If it is 2 guys burglarizing your home, a pump would probably suffice. If it is SWAT kicking in your door to take your guns and force you to buy health insurance you may want the semi. I have been pretty pleased with Mossberg shotguns overall, but I haven't used that particular one.
I hope that helps.
Yes home defense. As far as pump vs. semiauto I’m thinking speed. I want to put the bad guys down asap. Seems kinda pricey though.
I’ve never shot a pistol grip like the 500 you mention. Wouldn’t it be hard to control, esp on 2nd shot for perp 2?