Headfier Barra has published the most comprehensive English review of the Fiio X5 on the net. If you are in the market for a high-performance DAP but can't quite shell out for the AK120 or top-flight HiFimans, the X5 looks to be a good choice. There are conflicting reports on usability, but the majority of portable audiophiles do not invest in an audiophile player for its polish or ease of navigation.
Read the entire X5 review here.