I use 2 M28Us so I'm happy to see it is still considered a top pick. Aside from tuning the saturation down a little these screens have pretty much been flawless for my purposes.
Though I mostly use them with a 3080TI, plugging my 3060 laptop into a Thunderbolt 4 dock and instantly getting 144Hz G-Sync at up to 4K through the USB input ports on these monitors, while at the same time activating external mouse/keyboard/LAN/sound, I sort of feel like I'm living in the future.
I don't need anything above 60Hz...so my Dell 32" 4K monitor from 7 years ago is perfectly fine... I connect to my 65" Sony OLED when I want to watch movies - and I suppose I could use it for high refresh gaming if I ever decided to...
I went with a viewsonic elite 27" 2k IPS. 4k is still taxing on games (at max settings, which I want) unless you're dropping 3k on RTX's and thats not gonna happen with all the douchebag crypto miners trying to snatch easy $