Well, I have devoted today to ABC comparison in a serious way, I think.
Here is what I found. CDs outperforming Staccato after all, mostly in soundstage region. My original assessment must have been due to being greatly surprised by how much better Staccato fared while comparing it to Wiim and Node. The strangest thing was that Tidal took the last place despite choosing the highest streaming rate. MQA sounded even worse, but this probably due to Staccato not being MQA capable.
So, after all I am satisfied with this little, but quite hefty, streamer and it probably will better itself since I had it only for three days.
Thanks for tips and participation in this discussion.