In my view, the Nexus is a pretty good media player - the sound through my Denon headphones is very good (but will be dependent on what headphones you use).
There is no import software, just a case of creating folders on the SD card on your computer and then dragging and dropping. I use MediaMonkey to burn the CD's to MP3, plus download album art & tag each track.
I don't use the default music app on the phone but MixZing.
Phone speaker, as you would guess, is pretty flat - if you want to output the sound, get a decent dock.....I keep thinking about the B&W Zepplin but cannot justify the cost....will keep wishing
