I have a 105, and when Oppo announced they were going to be stopping manufacturing I bought a 203. It’s been in a secondary system and it definitely bested the previous player, a Sony ES SACD that is pretty highly regarded in this forum. I actually use the 203 mostly for Blu Rays as the system it resides in is mainly for video. Occasionally I use its Network function to stream files from my NAS (mainly when the Bluesound Node in the same system decides it doesn’t want to work, which is often). The 203 front usb panel also will read a 1tb drive I have filled with Historic recordings from Pristine Audio, which from some reason isn’t compatible with my other streamers.
I use my 105 to output the DSD layer from my large SACD collection into my Bryston DAC 3 over HDMI. The 105 has a lot more miles on it than the 203 in the secondary system. If the 105 gives up the ghost I am hoping the much more lightly used 203 can take it place in the two channel system