I'm using a quite similar approach, a kanban board implemented as an org-mode agenda to manage both my personal and professional life. I'm really happy with th

I'm using a quite similar approach, a kanban board implemented as an org-mode agenda to manage both my personal and professional life. I'm really happy with this method, as it's avoids overplanning and too many open tasks. Those were two pitfalls that I experienced using GTD. Also, org is really flexible, so it's possible to implement a variety of workflows. And it has excellent facilities to put stuff quickly into your inbox: org-capture and org-protocol.