Pros: Sound quality, Built quality, Battery life
Cons: May be bulky for some people
People might think using recorders as a DAP is non-sense, but the replay performance of D100 is truly amazing.
The playback portion of D100 has be optimized comparing to its predecessor D50. It can also playback flac and aac regardless of its inability to record in those format. It also feature multi language interface. build quality is outstanding, full metal construction. It also run on 4 AA batteries, and has good battery life
The price is good for price/performance ratio comparing to DAPs such as Astell Kern AK240 and Altmann Tera
I just received this product, will do an update later.