I've got two ported Taurus revolvers. Tracker 44 and M44.
The M44 has accounted for several deer. In low light, there's a bit of flash, but it's not knock-your-eyes out blinding, and I'm using Unique powder which is known for a fair amount of flash.
I've shot the Tracker 44 on dim ranges and the flash isn't anything that distracts me. It certainly wouldn't deter me from using it for home protection.
Mine was great, right out of the box. Purchased it not very long ago. All I did was adjust the rear sight slightly to the right (as I have to on most guns -- it's not them, it's me...) and it has been a great, fun gun.