Yes many people do say that they are trash because of cheap parts, and people complain that the computers come in not working and such.
I know that iBuyPower is the same as CyberPower, but people tend to say that CyberPower is more on the safe side. I had many friends buy from CyberPower and they have no complaints. In fact, I will also probably buy from CyberPower this summer. Just make sure you spend an extra $50 or $100 for safe shipping and professional wiring.
Worst part about CyberPower, I would say, is that it takes a while for it to ship depending on where you live.
If you do not know how to build your computer, this would probably be your best choice.