Developers are formulated for film speed, sharpness, or fine grain. No developer optimizes more than one.
Actually, Xtol does all three, it's sharp, fine grained, and yields gobs of shadow detail. It rocks with subjects where light hits them directly, but in subdued light it can look a little dull in the tonality it renders, which to me is the main compromise with this developer.
"Often moments come looking for us". - Robert Frank
"Make good art!" - Neil Gaiman
"...the heart and mind are the true lens of the camera". - Yousuf Karsh