I just bought brand new ones at 404£ this week. After extensive testing I can say "what a deal that was"!
I have yet to determine if I prefer them to my Arya V2: it is much closer than I expected from various reviews.
The only thing that left me disappointed, and certainly not a reason to return them, is that they are power hungry and both my BTR5 and Qudelix 5K barely power it ok with little to no headroom,while the Go Blu does better but still at close to 90% of the power. So it's not comparable to the Ananda as power requirements go: unfortunately also in this the gap with the Arya is less than expected.
Do you have any thoughts on sound differences between the Edition XS and the Arya, so far? In other words, how would you describe their differences apart from tonality?