I bought slowdowner before I'd ever heard of transcribe. Slowdowner, it seems to me, couldn't be more intuitive.
You play the tune and click where you want the loop to start and click again where you want it to end.
You drag a slider for pitch and another for speed.
That's the bulk of it.
I couldn't figure out how to do that in Transcribe without reading the manual.
But, Transcribe has many more features which some find useful.