Not the same module but similar:
The Signal Path #112 - Noise & Performance Considerations of the DPH3205 Buck-Boost DC/DC Converter Module
Edit:
Here are the videos from Dave:
EEVblog #1030 - $20 DIY Bench Power Supply!
EEVblog #1035 - Flaming DIY Power Supply!
Dave did a followup video on the flaming PSU... his supplier did a thorough investigation and found that the assembly process was overheating those MLCCs, causing them to fracture during manufacture. He stepped up and provided warranty, and revised the design to fix the problem.
Also, to be clear, NOT the same device as 5005, which in fact has a pretty good track record.
The noise "issues" many of these videos show are mostly caused by feeding them with a noisy SMPS (or in one case, picking up unrelated common-mode noise from nearby LED illumination); these modules just amplify that noise. Other vids I've seen show that powered from a reasonably clean linear source and building in a metal box, that noise is greatly reduced. Like with all these "modular electronic gimcracks from China",
results are as much dependent upon the user application as the device itself. Also, obviously, expecting lab-grade power from a $20 module is simply ridiculous on the face of it.
These things have their place, even on a lab workbench, as long as you are mindful of their limitations. 30-50mV noise factor is very usable; bang/buck is still off the hook.
mnem
*punt*