Yes, I have an LG 449UJ630V. UJ63 series.
Love the Mouse Pointer Interface, so much easier than scrolling around with buttons like most other Smart TVs.
Use several of the Apps DSTVNow ( just released ) YouTube, Ted, And stream from my NAS box.
Built in Sound is quite impressive too.
Wireless USB Keyboard just worked, AND I can use USB Disk drive to record TV as well.