Taste is a subjective subject. I prefer the taste of my bread to store bought. However, taste is not the only reason to use fresh milled flour. Fresh milled flour contains all of the wheat berry and all of the micro-nutrients that makes bread healthy. White bread is stripped of all the "good" stuff in the wheat and original people got ill from white bread until the government mandated adding artificial "enrichments" .
I use a Mockmill Stone Mill to grind my wheat and I buy wheat berries in bulk online from
Palouse Brand and Clear Creek Foods and
Ancient Grains for Sale | Grand Teton Ancient Grains. There are many other places online.