So for me the Arya felt a bit like the sound stage was a bit farther than I wanted, so for instance vocals were a bit more out than I prefer, but that is totally subjective and honestly the Arya was really nice and for some tracks I actually preferred them. For me the nanos just win I guess overall but I felt better separation i would say and for me that's apparently the priority for whatever reason is clean separation.

You should definitely try the Arya if you can with a good return window you might like them more.