Is the #taste better than own culture?
Everyone has a different culture due to ingredients used and bacteria around us, so it’s not objective to say which taste better, what you can get from sourdough powder is a wide range that are always consistent due to tight controls, you can find the taste profiles here and choose the one you think you like.
It can be a good alternative to keeping many starters, as there is no need to feed and discard.
You can adjust the fresh/instant yeast used for leavening depending on your own recipe’s fermentation. So it’s possible to produce an artisanal sourdough loaf now within 2 hours.