My girlfriend and I stay 2 nights in winter at Luiz and it was perfect.
Luiz is this kind of person that's borne to be host. I received a first message with four different possibilities very clear to reach his big apartment. Then he sent me all the informations I asked on my phone, well very attentive to what we need. Notice that Luiz speak a good english which is not common in Italy
The bed was awesome, the room was already warm, clean, sheets in good quality.
Honestly we've been to an other Rbn'B in the old town and we've missed Louiz place even with the 40min walk to reach the old town.