I used an AoC monitor once. Immediately dished it. They're cheap and you get what you pay for. It gives really shallow color, it's not very good. Everything is bright and whited out. Just think that you're going to be looking at it every time you're on your computer, so why buy cheap...
That being said it's extremely hard to see what a monitor will replicate for color when you're looking at them online, as the specs aren't comparable from one brand to the next, and since each panel is different and not always manufactured by the same company it's not the case that you can really compare the color replication of one monitor to another within the brand.
The things that you can count on being comparable are size, resolution, LED vs LCD, panel type (IPS, VA, TN, but that can be pretty tough to figure out, so just assume that in your price range it'll be a TN panel) and response time. Every other spec of the monitors you can essentially throw out because they're worth less than the time it took to enter it into the place's database. I'd go into you're local computer store, whatever you have around you, and just look around at the monitors, and pull up some webpages with lots of color and see which one looks the best, then go home and search for the best price online.
I think that's hands down the best way to shop for a monitor.