In the latest 2.8 beta ( and all other 2.8 versions i've tested) it is very difficult to see the edges in an object if those edges are close together. this didn't happen in 2.79 and makes tweaking a model quite difficult, these 2 images show what i'm describing. i used the floor generator addon on both to make a floor object, and in 2.79 it is very easy to see where one plank ends and the next one begins, but in 2.8 all you see are long lines and have to display the object in wireframe to be able to clearly see the individual planks.