I've Unleashed and been using this ultra beast now for over two months and I've been pushing it to it's full potential extensively using my Geforce RTX 2080-Ti.
Forget the "Pro's & Con's"
Here is the Truth:
I purchased the "LG UltraGear 27GN850-B model" which is pretty much the same monitor as the 27GL850-B but without the (USB-ports).
Let me tell you... This Monitor Dropkicks" the QHD 2K 1440p -144hrz & HD 1080p 100hrz gaming competition out of our solar system with it's raw IPS performance!!
It is a phenomenal gaming monitor and I have experienced 3 other gaming monitors so far, now 4. It delivers vibrant, accurate, and consistent colors with the fastest response time speed equal if not better than any other IPS monitor in the market from 2019 into 2020!
I've been giddy like a kid again enjoying the extremely low input lag, and tear-free G-sync action!. There's plenty of additional useful features that I am loving like the "Cross-Hair" input option that really actually helps in fast paced FPS games.
I thought it was just a gimmick but I was schooled by it's attribute. Other features like "Black Stabilizer" which lets you tune/tweak the blacks/shadows within games and media to my satisfaction! Also, there is the "Game Mode" a preset configuration of different calibrated styles like "Gamer Mode 1 & 2 which are for a variety of different games that gives you the ability to tweak & configure them both to your liking!
Along with an "FPS Mode - RTS Mode - HDR Effect - Reader Mode - sRGB Mode. But the best of them all...
"My Favorite ~ Vibrant Mode" this mode (imo) is excellent for Movie watching and especially for single player open world Games like The Witcher 3 & Red Dead Redemption 2, also I'm currently playing The Last Of Us 2 on my PS4 Pro and it's gorgeous running at 2160p due to the wonderful radiant colors and finely tuned gamma/contrast ratio!.
I could ramble on about how good this monitor is but I'm sure you get the point...
Now for the other Truth:
My only warning to anyone who loves to use monitors in the darkest of rooms will of course notice there is some IPS glow from the edges of the screen and some minor backlight bleeding. So to those who might be wondering what does that mean? It means the deep blacks within videos/movies that appear on screen look more like very dark grey and at bad angels there is shiny reflections/glowing from the corners of the screen but for games you can work around that with built in features/options as I described above. Also easy fix is to just turn on a lamp or burn some candles which will brighten up the room a little thus negating some of the IPS glow.
But with that said this small downside does not have a negative impact on me with my every day enjoyment/experience with it, but it might for someone who like I said, "Really Loves" to watch scary horror flicks or prefers to work/edit in the dark.
This LG UltraGear QHD LED IPS Monitor is a premium (Savage!)
For the $400+ price-tag this is one of the top 5 best of the best gaming monitors you can buy hands down!!.
For someone who is looking to upgrade or is a new adventurer in this landscape.
"I Highly Recommend This Product"