Well my Asus MX299Q has arrived, no bleed, no clouding and no annoying glow. The colours are better and contrast is much better than the 29UM65.
The response feels better too and both myself and my twitch gaming m8 reckon there is no input lag, or if there is he doesn't notice it.
Another m8 is coming over the weekend after next to calibrate it, not that it needs it in my opinion, and I'll make sure to report on it afterwards.
Games and movies are awesome, and I would recommend this unreservedly to anyone looking for a 21:9 29 inch display. It's everything I hoped the LG 29UM65 would be and more.
I just hope I don't need to RMA at any point
p.s The audio is fairly poor, but still way better than any other monitor I have heard thus far.
Edit: Sorry to hear that mrk, that's really disappointing to say the least.