The Mac is being sold for 300€. The physical condition seems decent. But it has probably some analog board problems.
Here's what the translated description says (original language is italian):
The conditions can be seen from the images, working with small defects: at startup, a "recovery volume" disk image appears over its HD but the computer works normally; if it is turned on again immediately after switching off it does not work and the last active image is displayed ("Now you can turn off Macintosh"); if it is turned on again after a few minutes and for the next 10 minutes,