This app is fantastic!
The only thing wrong with this app is it has a learning curve which is entirely worth it. It would take no more than an hour to get really familiar with this app. But the best way to go about it is to go to the website. There are a half-dozen stories of how different people use it differently. I use 7 Habits and use Projects or Project folders as Roles from my Mission Statement.
This is but one of many ways. To use it but certainly the only ‘cost’ is the learning curve. And that has more to do with learning the full potential than plug-n-play. I highly recommend this product.
Tompuo about
OmniFocus 2