I haven't gotten as many instances to incorporate it, and I'm thinking Uair seems mostly better. Only situation I can think of it doing work is being put in an edgeguarding situation where you don't have time to turnaround, then maybe? I've been getting my combo game down better, though I was discouraged against Fox and Falco, til I watched some vids and saw that Mario doesn't get Uair chains on them too easily.
Also, AIA Uair and Drop Cancel Nair are getting consistent, though the best setup for them honestly seems like the one from Schmoob's gif, but that's still hype.
Edit: Found some really niche MU knowledge today. When we Dthrow G&W he just sticks to the ground, for some reason, so we can jab reset, until they learn, and then it becomes a tech chase situation. Kinda weird but it was definitely cool shaking the G&W player up with it.