The apartment was as expected when we arrived. Spacious, a great view, and close to sights. Very quiet too!
We visited Milan during a heat wave and the air conditioners couldn't keep up. We were sweating in our sleep. I messaged Valentina to ask about an additional air conditioner and she said she'd come check on it the next day. Great! I went to sleep. We woke up a couple hours later to hear someone entering the apartment. She'd messaged me after I'd gone to sleep to say she'd come that night but I obviously didn't confirm since I was asleep. I was very uncomfortable with the situation and didn't tell her so because I was afraid of how she'd react and we still had another night to stay. She never apologized for entering without our permission while we slept. We had forgotten to lock the door behind us (we needed to lock ourselves in with a key - something most Americans aren't accustomed to) and it was obvious she was trying to blame her walking in on us for that reason.
Also, she provided no checkout instructions. We left the keys the same place we'd picked them up and when I told her, she berated me for not checking with her telling me I'd caused a big problem she'd have to fix. I suggested she could proactively send check out instructions (something I've received at every Airbnb I've ever stayed in) and she said she hadn't messaged instructions because she wanted to protect our peace. I'm not sure why she would have expected us to think we couldn't leave the keys the same place we'd gotten them if she hadn't communicated otherwise. This is also typical of places I've stayed.
This was a disappointing stay. I've used Airbnb for many years and have never had such an experience. I've only had opportunities to leave positive reviews. Her place is a fine place to stay but I wouldn't stay in a place she's hosting again because of awful communication and a tendency to blame her guests for this issue. We felt very uncomfortable with her.