Assuming you and others in your house hold know how to use optics already and spent some time with them, here is my 2 cents. If your looking for a dedicated house gun with optics, going on 3 or so years now I have the burris fastfire 3 on a nightstand gun (gen 3 g19), I have it on the lowest setting and the battery last about 6-7 months. I take it to the range every time i change the battery just to confirm zero. I did try the holosun 507c and 407c (sold the 407 since I like the circle dot better) with shake wake option however it is not for me, a bit slow to turn on in my opinion however the battery is still good, haven't change it yet (about a year now), I have the 507's now primarily on competition CO gun. The FF3 is cheaper than the Holosun's and great warranty.