But at least what would I know is the real world 'experience' of using it.
People's 'experience' with a power supply is pretty useless for the most part.
Any issues unless widespread will be subjective and biased.
Really fan noise, ease of installation and aesthetics maybe are what a typical end user could tell you?
To know the quality and likely reliability you need a deep knowledge of the OEMs involved, SMPS design, topology and layout, component choice and assembly quality then also meaure it with test equipment right up to it's limits to confirm how it performs.
That is why @jonnyGURU has pointed you to reviews. He is actually the expert on this.
9 hours ago, dhannemon13 said:
would be the most expensive PSU we'd ever buy.
CX is by no means a high end PSU, but typically a solid low end choice.