I have a Lumin T2 and just recently demoed the Innuos. Based on my experience the Lumin is the easier and more reliable of the two. I had an issue early on with my Lumin and connected directly with the distributor in California and they walked me step by step through the issue and it has worked flawlessly since. I find the Lumin app extremely easy to use and found the Innuos more "glitchy". Currently, my Lumin is connected to a Roon Nucleus + with a separate NAS drive.
Good luck and let us know how it works out for you!