While shopping recently for a new 22" display, I looked 83 different displays from just about every brand out there (a few of which I had never even heard of before)
I finally narrowed it down to 17, bought 3 at a time and took them home to try out for ~5 days, so I could compare them side by side.
I looked not only at the actual picture quality, but also the overall design, color scheme, build quality, amount of plastic & metal, inputs, and every other little detail.
In EVERY case, Acer was at or near the bottom of my pile! Yes there were a few worse ones, but not many...........
In the end, I chose the HP W2207 and could not be happier !
Bottom line: Cheapo monitors SUK
If you can't afford a GOOD display now, save up until you can. Your eyes & brain will thank you down the road!