Does the Koolance coolant flush refiller actually work?

The flusher seems like it would be convenient for changing coolants. Damn expensive, but saving an hour might be worth it. On the other hand noone has actually reviewed the damn thing, and who knows if it will cause loops to leak.

https://koolance.com/rfs-500-coolant-refilling-station

it is for the refill of prefilled AIO units with quick disconnects and other loops with quick connections. could be great could be a burning pile of trash. but i would assume that it is decent for the price that they are asking review would be needed before i bought.

I just know some of their products are designed for industrial applications. Would be funny if it blew out the radiator.