I've been using Pro for a while now to do my editing. I've noticed several little things that are driving me crazy and wondered what issues others were having.
Snapping: If I have edge snapping turned on, it seems to take precedence over vertex snapping. I don't remember this behavior in ArcMap. The issue happens when one layer has a vertex that I really want to snap to but the other layer with no vertex is what the snapping seems to want to go to. I'm sure it has something to do with the drawing order but not totally sure. I'd like a bit more fine control over snapping rather than having to toggle edge snapping on/off constantly.
Trace tool: The trace tool is extremely picky and very slow to draw. Sometimes even the slightest of movements makes you have to start over on the sketch.
Split tool: This tool is also extremely picky. We really need a separate tool for polygons called cut or something similar. These were separate in ArcMap.