I've choosen to use Kite's super all in one because i want to practice an easy building before diving deeper in DIY.
I will make the build very simple, and then step by step add stuffs (leds, rgb status led, all leds controlled by a rotary potentiometer, real cartridge with leds inside, stereo sound output, L1/R1 & L2/R2 inputs, overclocking with fan etc

)
Those boards are really amazing yes, it allows anyone with little knowledge to buid a complete hand held legend in few steps
After that, i'll make a new build all DIY