Just got my hands on LG 42LB670V webOS TV here in Lithuania.
All I want to say now is that it's very laggy, glitchy, slow and not very user friendly. Basic Live TV menu is very non-user-friendly, it is much more straightforward on 2012-2014 Netcast TVs. Multitasking is pretty strange, although it works. LG Apps Store doesn't work now, although my Netcast app worked out of the box, so it's probably simulated somehow.
My advice - don't rush into buying it now, try it in the store first, you can get disappointed.