Thanks kmel, this is very very helpful. It essentially identical to the BK,but there are very small differences. I've enclosed a screen grab from Dave's video so you can compare.
On the side vents, there are big windows on the Maynuo versus slotted vents on the BK. A lot more airflow, but it reduces the structural integrity of the opening, but cheaper to make than slots.
There are no cutouts on the PCB for high voltage clearances at the inputs.
The ground wire is too close to the terminal, its actually touching V+. Its also not optimally placed, it should be as close to the X-Y capacitors like it was on the BK version.
Those X or Y capacitors should be completely flush with the PCB to minimize arc potential, the feet are easily visible.
Only one large powered heatsink as expected, versus 2 in 300W version. Seem is would be better installed on the right side to give those small ohm power resistors added cooling through the fan.
Those green 5 ohm power resistors seem a bit roughly made.
Its certainly a different class compared to the BK or the Array hardware construction.