There's a DP cable in the box and it's holding 165hz without a problem for me.
On the general topic, there was initially clear BLB on purely black images but after calibrating the monitor properly (including dropping the brightness to 30 from the default of 100!) it's hard to notice.
Having just spent a small fortune, for me anyway, on a 1080Ti I will think about that monitor - it does seem to be the best for what I would like. I never thought that I would say so, being an IPS screen and the BLB and glow issues I have had in the past.
I do wish that such a device like a Freesync to Gsync adaptor would be available....