I think most of the time the snapping is amazing and works as expected. Eg: when resizing rectangle, etc
The one notable exception is the initial click and drag when starting to create a new shape. That just won’t snap to the corect item. It feels like it’s impossible to get it to snap to anything. It’s funny that when I resize the item it snaps happily, so perhaps it’s an easy fix.
I’d like to bump this one with an “I’m interested too”. Especially snapping guides to existing layers would help immensely. I often block out a layout using rectangles, then move guides to their edges and delete the rectangles.