The 6P is a nice light that feels good in my hand. If you replace the incandescent bulb with one of the P60L Surefire modules, it should be a good "around the house" light as well as general carry. Note that a 6PL is supposed to be in the supply chain - it comes with the P60L module already- and that the p60L makes a "floody" light (though with less throw than the P60 bulb).
Runtime is an issue for power outage use, as is lumen output and beam pattern. For around the house and general use, I like an honest 50-60 out the front lumens.
I carry a C2 (same size as the P6) in my bag with the standard P60 bulb, though the light beam pattern is a bit narrow and bright for close in work. I also have a P60L module, but I carry a couple of other LED lights that basically serve that function (old ARC LS, ORB NS, and/or ORB WEE - lights I find convenient to always carry).
Around the house, I have a 4D MAG-Lite with a Terralux LED adapter (the newer ones). The beam pattern leaves much to be desired thanks to the MAG-Lites reflector, but for less than $40 I have a reasonable amount of light for at least 8 hours (I stopped timing at approximately 8 hours). If I had it to do again, I'd go with a 2D Mag-Lite and the Terralux LED adapter. Be advised that there have been some flickering issues with the Terralux adapters - the one in my car, in a 3D Mag-light, had a minor flicker when the ambient temperature was near freezing.
As noted above, lurking the various light forums is recommended.I lurk regularlyat Candlepower, Flashlight, Flashlight.news, and customlight. Be advised, these are not the busiest forums - candlepower seems the most popular, but there is information on all of them. Flashlight reviews is helpful, as is the LED Museum, too.
Flashlight technology has really been advancing in the last few years.