I sent an email to Aurender earlier this year, when I was auditioning different units I had borrowed (N150 and N10); and wanted an opinion versus the N200......I too have a Denafrips Pontus II. Their general guidance was that the N150 would not be my long term solution, and the N10 and N200 would grow with my system and not be outclassed.
In my system the N150 was a noticeable improvement on my current set-up (BS Node 130/LHY LPS/Iris DDC, but not enough for me to want to upgrade immediately.
The N10 was another beast altogether, it just transformed everything to such an exciting level and made me realize that streaming is my future source material. At that time I also realized that I will be spending much more on a streamer than I initially thought, but I am okay with that......if I can have that level of SQ. Personally I think I'll end up with an Aurender N20, but I'm keeping an open mind on Lumin and Innous.....I just have never had them in my system.
Just looking around today, a used N200 can be had about $4,300 and an N20 for about $8,000.