I just upgraded to 2.05. The DAC works perfectly (after installing the drivers), and it sounds excellent.
I manually updated the music library and it seems much faster after the FW upgrade. I tried playing music in Browse mode. Adele Live at Albert Hall sounds amazing, and the gapless now works! A good live recording really helps you appreciate the gapless playback.
I am extremely impressed with the performance, features, and value of the X3. Thanks FiiO and Beta team for working to release a flawless and high quality upgrade.