Also like Sony mp3 myself, had various successions of Sony phones with mp3 over the years. Sound very good but worth buying better headphones to get the most out of them.
Although the new generations don't have any controls to adjust bass etc. Which is my personal gripe with most current mp3 players.
Got an SE Satio myself which I use with bluetooth headphones, very handy on the bike, takes good pics as well, 12 mp camera. It does do some apps but I didn't buy it for that. Does have google maps though which is handy.