Cannot comment on the 3D quality, since I do not own an 3d Tv yet.
But I love the usb stick possibility and direct stream, apart from playing normal Dvd and Blurays.
Unfortunately you cannot playback MKV files via a USB stick, but streaming films directly from you
pc via a network cable works perfectly. (trust it depends on your pc and codecs)
Only not able to use .srt files when streming data but for people in the USA and Canada you do not
need any subtitels for English spoken movies anyway.
So what you get is an Universal player, capable of playing CD/DVD/ Blurays and an usb port for a
usb stick or hd with certain streaming possibilities.
Had some initial problems with reading Blu Rays, but since I did a factory reset, the dbt1713ud has
been operating good.
Replaced my avr2310 by a AVR-3312 (hdmi 1.4) yesterday for a future 3d set up.