For $64 I ordered a refurb WD TV Live box on Friday from California off eBay, and I got the unit today (Wednesday) in Canada. Not bad for free international shipping (USPS). I see they've raised the price a bit since then, but that's still a good deal considering the new crippled WD TV Play costs about the same new, not including shipping.
I plugged it in and then updated the firmware immediately. My Harmony remote had the remote codes programmed in already from their database and everything works as expected. Initially it seemed insensitive to the power toggle button but that was right after the firmware update. Now it seems perfectly fine. Hopefully this is not a sign of future glitches.
UI is decent, albeit not as slick as Apple's. Speed is OK, but switching apps could sometimes be faster. It's faster than switching apps on my Blu-ray player though. Access to my my NAS's network shares is fast and reliable, but that's on wired Ethernet. I haven't tried WiFi, but WiFi in this setup wouldn't be a good test anyway because the WD box is right beside the wireless router.
No iTunes or other similar DRM support of course, but Netflix works great. I'm getting most of the titles listed as
SuperHD and the quality is very good. (I'm on a 25 Mbps connection.) For some reason they're not showing up as SuperHD on my Sony Blu-ray player, but I wonder if it's just because the icon isn't there yet in the current firmware. If not, I suspect it will get that at the next firmware update.
MKV playback is excellent, and audio on some files that cause wonkiness in DicePlayer in Android works perfectly with this box. Moderately high bitrate MKV is no problem, at least up to the 12 Mbps I tried. I haven't tried higher yet. Having the audio sync management settings are nice too.
I'm not seeing any artwork though. It plays my full DVD rips (VIDEO_TS folders) too, complete with menus.
So, if you want DRM support and don't have a jailbroken Apple TV 2, I'd have no problems recommending this unit alongside an Apple TV 3.