When I first started sequencing, with Cakewalk 3.1, I was entering notes via midi in step time. That was a long and painful process. So, I learned to play keyboard in order to be able to enter notes as I played them in real time, and also I learned to read notation. I actually went out of my way to learn to read notation in order to use staff view. Even then, when I couldn't read notation, I hated piano roll.
Entering notes on the Cakewalk 3.1 staff really helped me learn how to transcribe rhythm, interpret written rhythm, and just improved my overall ability to play in time. Now if a musician says, "we come in on the and of three.", I feel it, I see it in my mind (literally on staff), and I am able to count it via foot-tapping.