Incredible sharpness. Fantastic bokeh.
I chose between this o 35/1, 8. Have not tried the 35-ball but the benefits of this is that the depth is even tighter, it gets really heavy o beautiful bokeh at f / 1.8. You can really cut off o bring out detail in their detail pictures. The downside is that with the 50mm on a DX camera is equivalent to 80mm so you feel all the time that you need to be on the "safe distance" from the shooting. I think they get away with 35mm variant.
If it's between this and 50/1, 4, I still opted for the 1.8 focuses faster. It does not matter if you have 2/3 f-stops more about AF focus should be slow o then it will still be a blurred image f / 1,8 has a super shallow depth of field. If a child comes running to get the man still can not picture due to slow focusing. Plus 1.4 weighs almost twice as much o costing more than twice as much, it does 4 times worse imo. Adjusted for the 2/3 stop so 3 times worse then :-) But it depends on what one is looking for o what suits yourself.