After using the 0404 USB for over a year, and a Marantz SA8001 for about six months now, I can say that yes, the 0404 USB is revealing......but can tend toward the fatiguing side on less-than-top-notch recordings.
Because I primarily judge the quality of gear on well recorded (meaning minimally miked, uncompressed/unequalized) classical music, the 0404 USB comes out just a hair under the Marantz....and the Marantz has been rather well-reviewed.
OTOH, the Marantz is indeed warmer but doesn't give up detail, so it is less fatiguing and generally preferable on lesser recordings.
I don't know which DAC chip is in your Zhaolu--I think it's probably a CS4398--but the 0404 USB seems to be a good example of the AKM "house sound" versus the Marantz being a good example of the Cirrus "house sound".
It may very well be that improving the analog output of the Zhaolu will keep the "CS warmth" but add clarity, and the end result will be preferable to the 0404 USB on most recordings.