I have a Dell U2412M and it has been one of the best investments on my PC for me. Colours and viewing angles are great, the build quality is very sturdy and robust as well as having tilt, pivot and height adjust. Gaming performance is very good IMO. I don't notice much ghosting. The only downside for me, is the anti glare coating makes the screen seem less vivid compared to my Vaio Pro screen. Otherwise it's a very good monitor. I would think a Dell IPS monitor is a worthy consideration. Asus is also a brand I hear great things about.
Did you notice any issues while using DP or HDMI? I've read that with nVidia GPUs there's a common issue when using DP1.2 (no problems when disabling 1.2) and HDMI. The GPU recognises the monitor as an HDTV and reduces the RGB range, which makes the display look washed out.
Wouldn't matter to me right now since I have an AMD GPU, but this might change in the future and I don't want to be limited in my choices because of this.
A matt display might take away some of the crispness, but I prefer it for everday use (especially on laptops). My current monitor has also a matt display, so it won't bother me.
I'm actually quite determined about this monitor. It's one of the cheapest I could find with my requirements (23-24", 1080p, IPS panel, HDMI+DP, reputable brand). There are only 2 AOC monitors that would meet those requirements but one has a silver bezel and the other one has a bezel that's textured which I don't like. Since I'm going to look at it quite often I don't want to regret my choice just because it was a few bucks cheaper.
Thanks for the feedback!