Been using Omnifocus 3 for awhile now. I was doing the beta and now that it is released on iOS, i absolutely love it. I am very surprised though that there has been no mention go the Omnifocus 3 for iOS update or release posted anywhere in MacRumors. Not one word. There have been several great changes to Omnifocus, they now support multiple tags per item and you can now create more perspectives as well.
I have used multiple task apps over the years and Omnifocus has been my go to app since i got my first MacBook Pro back in 2011. Been through versions one, two and now 3. It's gotten so much better over the years. I have also tried Todoist, Things 3, ToDo (Appigo), 2Do, Tick Tick, and another favorite is Informant. Somehow I just keep coming back to Omnifocus. I've read people balking about the costs, but all I can say it is well worth the cost. This is the only app of the ones that I mentioned whereas I did not lose data, in any way shape or form and that is most important to me. I never had a sync issue in the 7 years or so I've had Omnifocus and I cannot say the same for any of the other apps that I mentioned. So when it comes to reliability Omnifocus wins hands down.
Now that is not to say any of the others are bad. I will admit that each of the other apps mentioned has attributes that I like over the others and that is also important. Not every app will please everyone and a task manager is a personal choice. Check out Omnifocus 3 for iOS if you haven't yet, you might be quite surprised.
I have always thought the price for Omnifocus was reasonable for what it is. I just left it because I realized I'm better off with something that can run on Windows as well as iOS. Omnifocus is an excellent tool, and it's hard to put a price on productivity. TickTick Premium runs me $28 a year, which many people still consider to be too much to pay when there are alternatives running from free to five bucks (and of course there is a free version of TickTick). I guess it all comes down to how much you get out of your app. I think we can assume that those of us having this discussion are power users who get quite a lot out of our task and project management tools.
Enjoy the new version! If Omnifocus ever releases a Web or Windows client, I might give it another go.