got an a3hd from annot maybe a month ago.
no complaints for playing HD files at it plays smoothly.
only qualms are:
1.infrared of the device sometimes does not respond to the remote. medyo mahina pickup niya, you need to come closer. di rin siya kasama sa Logitech Device List so need mo to program the buttons individually (medyo hassle at matagal pero 1 time lang naman)
2. i dont have a internal hard drive, sometimes i accidentally press the Hard drive menu. maghahang yung unit. you need to reboot.
3. you dont know if the device is in standby or turned on since both will indicate the blue LED lit up.
4. no chapter selection
5. when you forward too much, sound disappear (as indicated by a fellow forummer)
other than that, it plays flawlessly and optical output is good. and for 2.5k, its worth it IMO if you are not that picky.