I don't think the U7K series will be bad per se, just not super amazing. If you're not a TV/panel aficionado and are not very hung-up on contrast, black levels, etc (neither am I), then I think you'll be happy with it.
There is too much uncertainilty right now, given the hisense/TCL history of launching inferior panels in india/SE asia.
As
@lightgamer put it, If you can afford an oled and are okay with downsizing to a size below, go for an oled.
My gripe with oled is image retention, when I game for 5-6 hours straight once every 2 weeks. Hopefully that won't be an issue with C3.