Has anyone tried this extensively? Is it labor intensive? How does it compare to iGTD? I think we are all searching for an easy to use, but powerful system to get working more effeciently.

Alternatives?

 

Started with OmniFocus but switched to Things, it is way easier to use. ( http://www.culturedcode.com/things/ )

Yep, I use Things, too. I liked OmniFocus, but found the learning curve was greater than for Things. And the job is essentially the same.

I use things now as well. Very nice.

My main problem with these setups is that they don't seem quite mobile enough for me.  I need access to my action lists on the go.  I'm considering Tiddlywiki for my needs.