Just a good AR pistol. I prefer an easier addition of BUIS, but for what it is, it's a solid gun.
What I've found with AR pistols is that the only downside is the loud concussive blast, but women love them. They are more compact and lighter that a larger carbine and they are much more comfortable shooting an AR pistol with a brace than a regular handgun (for novices). With a light and a red-dot, they really appreciate the platform and capabilities. While I would recommend a suppressor for home defense, they are still quite a viable choice for HD.