It literally hasn’t changed even a tiny bit since I first saw it in 2006 :)

I currently use Strawberry - a well maintained fork of the old Amarok player before they redone the UI for KDE 4. It does what I care the most:

• Tree view collection with artist -> album grouping
• Files view
• Lyrics
• Tag editor
• Queue
• Last, but definitely not least - gapless playback