Omnifocus is the most time-sucking application I ever used. MLO gives far more for far less time. I, too, was stuck with Omnifocus because of being a Mac user, but now have an option.
Do try using this Mac app, Crossover, that allows you to run MLO-for-Windows on your Mac, without having a Windows license or anything. It gives you about 99% of the functionality of running MLO on Windows, costing about $40. It can then be used to run a wide variety of other Windows apps.
https://www.codeweavers.com/
Chuck Waterfield