I registered just so I could reply for you.
I bought the Asus Cube coming from a Boxee Box. I love the idea of integrating the Cube with my Verizon Fios where before, with the Boxee, I'd have to change inputs and totally remove myself from a TV show I am watching.
To answer your question:
For me is that the Cube seems faster at processing requests than most products in it's space. The remote with the voice feature is pretty awesome though I don't use the Cube remote often (usually use my Logitech which I have not yet programmed to turn the Cube on/off). People have complained that the interface of the Cube is clunky with the Cube design. This doesn't really bother me much as I typically go to "All Apps" anyway and choose the app I want to use. The Chrome browser could use an update but gets the job done much better than the Boxee (that unit was terrible at browsing, especially use it's remote).
The bad (which I am hopeful will all be fixed sooner rather than later)...
The unit at times, when powered on does not show video, though you can hear the audio. I've had to unplug the Cube and power it back on with all of my other devices still powered (tv, dvr, a/v receiver). For the time being, I power all of my devices up first then power on the Cube. This has worked 100% of the time though a bit annoying especially for when I program my Harmony remote to power everything on at once...will I have to set a delay on powering the Cube???...annoying
The other issue is that almost every damn app on the Google Play Store is incompatible with this unit (as they seem to be with most units anyway). This proves to be a big issue for me as I bought this unit mainly to stream movies and tv shows from my Google Drive. I can navigate to my GDrive in Chrome but the unit won't hold full screen rendering it useless.
As for Rooting the device, I tried Cube Root and although it stated that my device is rooted, it does not seem to be. I tried using Market Helper which spoofs the device to seem like a galaxy S3 so you can at least install the apps but Market Helper says the Cube is not rooted. I have not tested it much since that one days attemps.
If Asus and or Google or whoever handles the app compatibility issues gets their act together, this unit could be pretty awesome. If not, I may be selling it unsure of what other option I'd go with.