I have this laptop and after 3 weeks it stopped to work completely (motherboard issue). Unfortunately the repair needed almost 2 months waiting for the new board! Where is the HP solidity and good services? Gone forever???

T580 with uhd ips (low pwm+poor brightness+low contrast+low sRGB coverage) set 91% of 98 by NB team...and perfect zbook uhd ips with much more quality only 89%?

Sorry guys but no!
Respect for the job you are doing, but something went wrong with your reviews. First I'm not HP, Lenovo, Dell or any brand fan, I just want honest reviews. If this laptop scores 81% how come same laptop scores 89 as an Elitebook 850 g5? The only difference is the cpu which on the other hand is the same Intel cpu with a bit overclocking (in turbo mode only, hence faster rise in temperature - faster throttling) and dedicated video card which obviously is a weak but certified professional video card. How come from stated 1.77kg, zbook 15u G5 become 1.94kg and G6 1.58kg - same configurations, no touch screen. Same as the G5 which score 80% and elitebook G5 89%? Ok, better display on the elitebook vs zbook G5, but you have very good display here? At the same time Lenovo T590 (which have a fair score, same as elitebook G5/6) are doing the same with P53s (T590 with weak professional GPU) which you will review soon and I believe will score a lot more than this one, even if you review the 250nits model. And again sorry, but you've lost credibility with me, which is pitty since not many detailed reviews exist..

According to HP specs the weight is starting at 1.77kgs.

Well, that's how payed promotion articles are made now days. Put minor drawback  to the header so innovation look bad.  Wondering if Lenovo payed for that either. Apple-style marketing is killing the industry.