I came from a perspective of an upgrader. The N7 is superb! I was using the Hiby R6 (2020) prior to this and the N7 wow me and totally made the R6 redundant.
The strenght is the imaging and instrument separation. Everything has its own place and you can distinctly hear them. It upgraded the listening exprrience of my IEMs.
But weirdly, it made my BA IEMs sounds clearer and better than my hybrid, tribrid, and dynamics ones. I love my Er3se and Fiio FA9 with the N7. The AKG n5005 sounds better than on R6 but somehow loses to FA9 in terms of clarity. The Fiio FD7 and Monarch Mk2 both sounds a bit muddy. I think the N7 highlighted the difference between the drivers and made it more obvious in their sound profiles.
Its a DAP which has a slightly elevated emphasis on mids and highs, but lows are great too! Definitely a keeper!!!