In my country(Bulgaria) we have a joke, when asked about differences.
"Difference is same as between chair and electric chair" :-))))
It is night and day in regards with refinement, resolution, soundstage, liquid airy sound, notes and tones you've never heard they are in the recoding, body, feeling like you are in the recording studio....
Just read what @hifipassion and @boa2 said. It sums it all. I still feel same excitement(even if I know my DAC very well) when I sit down to listen music. Music just sucks you in. Tubadour DACs sound "interesting" compared to WAVE.