We didn't meet the 'host' Christian, which (given his communication style) was probably for the best.
I mistakenly selected 1 guest when I booked this room, though all my communication to Cristian talked about me and my partner. He didn't respond at all to our booking, nor did he respond weeks later when I asked him to confirm if our arrival time was ok. Finally, after several more messages he managed a two word 'see you'. He didn't respond to our message from the airport shuttle. We were let in by a neighbour.
From here communtication actually went downhill due to Christians rude, contradictory and unnecessarily repetative demands for 100 euros in cash!!!!?????!!!!!, which we'd immediately agreed to and left as instructed. He never came to pick this up. At no point did he welcome us or ask about our stay.
On Day 4 he amended the booking via the website and we all got on with our lives. What a pity he didn't do this back in september when we booked.
On the plus side it's a nice flat in great part of Naples, happily away from the tourists.