Thanks for asking. There are several reasons why I switched from paper to digital:
1. Because I do a lot of GTD coaching (for free!) with family and friends, I try to keep up on both methods so I can coach from experience.
2. While I've had a few hiccups with OmniFocus, I think most of it had to do with Missing Sync and not the OF program itself. And with paper, I had to keep more paper project reference files. But with OF, the notes section below the project is ideal for storing lots of relevant information. Plus, I can make changes quickly and cleaning without a lot of re-writing/whiting out involved. I also keep a lot of checklists and they nest well within OF.
3. I have a very busy life these days and digital calendaring seems to work well as I can put a lot of appointments/reoccurring items in my schedule without a lot of re-writing and fuss.
4. I'm still hybrid to a point: I carry my planner throughout the day with lots of note paper for capturing meeting notes, ideas, mind sweeps, etc. I still keep my old lists and calendar pages in it so I can use them to show others the GTD system and how it plays out in analogue.
5. I got a new Mac and LOVE playing on it!
I must confess that I long for the day when there is one PIM for Mac that is unified with Calendar, Contacts, Tasks and Notes in one program. I eagerly wait for Outlook for Mac to be released to see if MS has shed its Entourage failure for something that works like the Mac applications do.