Expensive but worth it

If you’re looking for the best GTD app avaliable, this one is for you.
Expensive but the most well-thought app on the market.
The only thing is that the syncing between devices could have been done better (sometimes it takes too long to sync and having problems when task are edited on two devices in short period of time).

LuciusHax about OmniFocus 2, v2.0.1