I'm not sure exactly what a good edge looks like. It kinda looks all the same to me. Although I did take a brand new DE blade and examined the edge and it seems to be a bit "shinier" and not as scratchy looking as my SE, but not by much at all
First ting I look for is micro chips, micro cracks, or micro pitting (corrosion).
I look at the bevel at the 1k stage, more often, to make sure all problems are fixed, then go up the grits, and look once after each grit.