The soffit and crown take as long as hanging the cabinets.
First there is setting the cleats on top of the cabinets and against the ceiling. Then I cut soffit and crown to rough length and label them.
After that its dozens of trips jumping back and forth from the saw to my bench....making trial cuts until things fit. I never use stepladders for this job......they are clunky...awkward.. and can damage cabinets.
Still cant figure how to post full size pictures...so tried pasting a url this time
https://lh3.googleusercontent.com/2P...-no?authuser=1
https://lh3.googleusercontent.com/Ar...-no?authuser=1