There aren't many new HP Omen 27i that I haven't seen on a gaming monitor before, but it's full of specifications that HP hasn't offered so far. The 27-inch QHD (2560 x 1440) nano IPS display offers much better color accuracy and contrast than the TN panels used in many HP's previous gaming monitors.
HP supplied LG's 16: 9 aspect ratio display (which can be very similar to this LG model). It features 98% of the DCI-P3 color gamut, 165Hz refresh rate and 1ms response time. It is also compatible with Nvidia G-Sync, so you can get more fidelity visual fidelity when used with a PC equipped with a Nvidia GTX 10 series card or higher.
All is great. However, what I like most about the Omen 27i is not the screen itself, but the lighting on the back of the monitor. Near the point where the monitor meets the articulating stand (or VESA compatible if you want to mount it instead), HP has created a section with a light illuminating the port. The port lineup (including DisplayPort 1.2, HDMI 2.0, two USB 3.0 ports for connecting accessories, and a USB 3.0 port for routing data and powering it back to the PC) is mounted diagonally for easy access. Adding lights makes connecting cables easier. Of course, after installing the display, you don't have to mess with the port, but on most monitors, the day you have to switch something is common.
The USB-C port for video (or at least a charging device) would have been welcome. However, the upgrade seems to be good, especially if you only have a 1080p TN panel.
The Omen 27i is available today for $ 499.99 on HP.com and Best Buy.