It depends on what you do. I can read music perfectly well, but score edit in cubase gets used rarely to be honest. Your piano roll editing is for me faster and easier to see in the flow. A loose piece of music to the ear is very obvious in piano roll edit, but invisible in score mode. Broken chords or misplaced or random notes in a piano piece can be corrected easier in key edit. Repeated patterns of complex note lengths are easy to edit in blocks on one screen, impossible in the other. I use cubase sources score screens when I need to play in something and then score is easy. I cannot for example play in a sax line from piano roll style blocks, but I can from dots on a stage. I have a subscription to Sibelius, and my view of that hasn't changed in 20 years. Sibelius is excellent for when you need music on a page to play, and rubbish at being a sequencer, and cubase scoring is still very basic compared to Sibelius. They do, however, totally different things, so my collaborator uses Sibelius, and is less comfy with cubase and I'm the reverse. Just choice really.