I've recently been using Hit Finder and Panda Crazy, but I recently installed Hit Forker, Overwatch and Mturk Engine just to try different things. Mturk Engine certainly feels good. The one thing I can say is that when I saw the writer post a notice of Mturk Engine some time ago here, I looked at his website and saw that he praised a course called
https://watchandcode.com/ and I actually completed the free version and thought it was excellent, and different from almost any javascript or other sort of coding tutorial I've seen. I even signed up for the paid version but didn't have time, although I think I'm going to give it another go. So that speaks well for the writer, I'd say. But at the moment I'd say the features don't work for my current workflow.