I have been looking at OmniFocus 2 and although it seems to have all the features I could want its on the pricey side for task management. For me it would cost roughly $60 ($40 for their Mac app and $20 for their iPhone app). Is there any reason why I should pay $60 for a task management app when there are bunch for free or a 1/5 of the cost? Currently I'm using Wunderlist it suits me ok just wish it had a few more features. If you have OmniFocus 2 what features do you like the best?