Pros: Superior Sound Quality, Simple UI, Excellent Design, Very Powerful Internal Amp, Great Value, and did i mention the Sound Quality ???
Cons: Battery life could be lengthened a bit more, issues with songs randomly skipping,
Owned a variety of DAC's DAP/sources, Cowon J3, Hisound Studio 3rd Anniversary, Dacport LX, HRT Music Streamer II+, Sony Walkman Z. The DX100 completely blows them all away with it's reference quality sound, and it's ability to drive Power Hungry Headphones.