Starting

Hi, I’ve tried Duolingo in the past and just struggled to stay interested/engaged. I’ve just literally found out Dreaming Spanish exists, I’ve watched a video and already find it an easier way to learn. I guess what I’m asking is firstly how long on average does it take to see any progress with understanding? Are we talking 100 hours, 400 hours, 1000 hours? And is it recommended to use other apps at the same time or stick to Dreaming Spanish?

Thanks!