Innuos Zen MK3 vs Aurender N100

I can give you my 2 cents on Sense but have no experience with Aurender. For clarity I will tell you I have a Zenith Mk3 which is their midrange server/streamer. For the first 5-6 months I used it with the Orange Squeeze app which offers very basic player functions and it was a bit of a drag. I then tried and fell in love with Roon which was (and is) awesome but it is subscription based. In my setup I ran the core on the Zenith and it was rock solid but I did notice a degradation in sound if I tried to use any of the DSP functions. I used Roon for just under a year when Sense was introduced. I waited for 5-6 weeks before loading and trying Sense and though it was a step back functionally from Roon, it sounded better. I fortunately did not run into many of the glitches I have seen others deal with and Innuos has made steady improvements with features and stability. IMO Sense is very solid and sounds great. It is not Roon but what else is? I think Innuos is continuing to evolve Sense and overall they do a good job with support. They are based in Europe so if something comes up it can take some extra time to sync up with them but based on discussions I have seen they seem very responsive. Overall I am very pleased with their product.

I have no experience with Aurender, but I can share my experience with my ZENith Mk3:

I use it with Roon, and it works flawlessly. I love Roon, and I think Roon is miles away every other software in the space. Sense works fine, but, having Roon really makes me not use Sense at all. Maybe also because of my familiarity with Roon, having it for about six years now. Sense is nice too, and I am sure it will improve further with time.

I have been very happy with the Innuos Zen Mk3 and the Sense app. I have not experienced any problems with Sense, although a few users reported early problems that have been resolved. I do not have any experience with Aurender, and I do not use Roon. 

Overall, I agree with chilehed's comment that "Sense is very solid and sounds great."

Thanks everyone for sharing your experiences, very helpful. I guess the one question which I should have asked is will I hear a noticeable improvement going from my Mac mini to the innuos. I assume the answer is yes otherwise why bother. 

Absolutely!  Just do it.