In general, porting is good
My first experience was having my 44 Automag Magnaported in the middle 70's, which I believe was when that company first started up, and it certainly helped with the considerable recoil of what was then the most powerful automatic in the world.
Since then I have had a 10mm EAA Witness and a 45 EAA Witness that I worked up to 45 Super (185 grain XTP @ 1250 FPS...
) Magnaported, and in both cases this helped considerably with the recoil. Also have a Springfield V-16 longslide in 45 Super that came from the factory with 2 rows of 8 holes in the barrel and a butterflied slide, and the porting helps here too. This gun can put a 230 grain RN out the front at 1200 FPS, so there is recoil that needs reducing.
My only bad experience was a 10mm comped barrel I got for my 10mm EAA, and while it reduced the muzzle flip and recoil, it moved the target impact UP about 8" at 25 yards, and since the gun had fixed sights, that made the gun pretty much useless.
For high power, hot caliber guns I think porting is worth the price, and if you can get it from the factory that way so much the better. As far as added noise, at the range you're wearing headphones anyway, and if it's CCW shooting it will only happen once in your lifetime at most.
As far as increased muzzle flash at night for CCW, I haven't done enough night shooting with or without porting to really have an opinion worth sharing. Yes, there will be more flash, but if it allows you to get a 2nd shot off that much quicker and more accurately, a bullet in the perp is generally worth two in the bushes...