It sounds like you're liking what you're currently feeding, so don't feel you *have* to change anything

. I will say this though - I'm not the biggest fan of Nutro, especially, bc they've had such terrible and fatal quality issues...I personally would not feel comfortable feeding it bc of that. But...that said, there are many dogs who've had great success with it, so you kinda have to look at all sides.
I don't know much about the food you're mentioning...maybe post the ingredients so we can see...? I do like the duck and fish as the protein source, though. And, I'm a fan of grain free and/or very-low-grain for dogs...unless there is a health issue that prevents that kind of diet.
I noticed you only have 13 posts, so I wanted to say WELCOME to YT

and congrats on your new adorable furbaby.