Thanks! :)
Actually that was the question I had in my mind before build this solution.
The simple answer is: I like integrated things, I like to be able to enable or disable it just when I need (with gcode "M356 S1" before printing, "M356 S0" at print finished).
An electronic answer is that this is more "direct and stable/clean power solution" and has less power transformation than an external UPS that has to switch 12v to 230v, and the printer switch it back to 12v.
But, as I said, from a practical point of view, I just like integrated things, nothing more ;)
