I've used iiyama for the past 3 years on my secondary monitors, I was unsure on the quality and life cycle of this brand. However I've had no problems with the old monitors they are great in my eyes, much better than the acer ones I had. So I decided to buy the 27inch 1440p 144hz red eagle knowing I can trust the manafacturer.
The monitor arrived from ccl in good condition, on setting up the box provided everything I needed, (I heard rumours the dp cables were poor quality so took no chances and used my old decent ones), however I never tested the cables so can't judge. It even came with extra nuts for attaching it to a vesa mount. On start up you see how great the quality of the colour is, it's bright and colourful with no dead pictures. Obviously windows 10 doesn't recognise the 144hz so after adjusting that, the power of the monitor is unleashed.
I've owned this product for a month now and had no issues at all.
If I was to be picky I would say the o ly thing wrong with it is the bezel size looks thin however with the monitor on you can see its actually much bigger bigger.