I´m puzzled...
How long have you been doing GTD ??
You joined in the DA-forum world Sep 2011, been posting 15 posts...
How are you doing your NA:s, handling your projects, Area of Focus, etc. etc...
You are testing out what app would best for doing GTD... of course you could been GTD:ing without beeing a forum member, but - and please don´t missunderstand me - but I would listen to a more experienced forum member advice of what app he/she prefers... because this person had been doing GTD for a couple of years, and this person would have been on the bumpy road of productivity... trying out different systems...
but that´s my few cents...
p.s. as you can see in the foot of this post, I´m analog.. Filofax is a remarkable tool, looks very cool in black leather...
Your puzzlement is probably brought on my associating time on these forums with years of GTD experience. I'm a late comer to this forum.
I've been practising GTD for 4 years. The criteria for reviews are clearly set out, so if you're way of working with GTD is aligned with them, then you might find them useful. Rather than just advice based.