The view of the balcony is nice. However...
The check-in/out process is not ideal. Better to have a lockbox, rather than leaving it in a hole in the wall, under an electric box. It doesn't feel safe and made the check out confusing for someone else to find the key.
Safety was also a concern regarding the balcony doors, which could not be locked.
The host needs to understand that when people are travelling/on holiday, they can't reply immediately to messages. The host message to say I wasn't polite because I didn't reply to her messages asking if I liked the apartment... I had one evening in Naples and it wasn't my priority to feedback at that time.
There is no access to the kitchen (which is stated in the description). There should be some water/additional rubbish disposal available.
There is no air-conditioning and it was unbearable to sleep in the heat, even with the fan.