Redbook CD players, vs. Multi-Format players

Simply a question/thought I would enjoy hearing others experiences.  A CD player that I owned quite some time back was a high end Classe CD only player using the Ultra Analog DAC.  I have owned most of the better multi format players since then and just from my time spent listening and attention to the music they seem to not hold my interest as the old Classe did.

What experience(s) can you share on your thoughts of a dedicated Redbook player vs. a multi-format player.  

Thanks for your input/thoughts.