No DVD-A or SACD playback with the UB-9000 (pretty much just CD, DVD-V, Blu-Ray and UHD Blu-Ray). It will, however, play up to quad DSD files. For me, it's not an issue as I don't play discs. I have disc spinners in every system (in some, multiple ones) that have been rotated from old systems. Pretty much the only time these get used is if someone brings a music disc over once a year (if that) or a movie is played.
The UB-9000 also has a bunch of playback settings. Those include six types of digital output tube settings (to make the unit sound a bit different on each different simulated setting). The unit is also built like a tank.
I have not followed recent developments about the unit and the only other caveat I'd offer is that it doesn't have a dedicated app (unless they have come out with one in recent times) like the Oppo players did. That means one needs to navigate through files via a display with some exceptions. In my case, I have he DS Audio App which comes with the file station on my Synology NAS and I can navigate through the files easily.
The UB-9000 IMO is worth its price as a stand alone CD player. However, with many people using outboard DACs, one can buy a nice DAC for around the same money. For machines such as an Oppo, one can also convert SACD discs to output 24/88.2 and go through an outboard DAC. Of course, Oppo players these days tend to sell for a pretty penny (I've actually though about selling the Oppo 203 which now sits in a guest bedroom with my old UHD TV and never saw tons of use as I only had a bit more than a handful of UHD discs and I have my main system for music and other systems as well). So I personally don't have much use for disc spinners.
