Overall, I enjoyed my stay at Ny's place. It is clean, cozy and very quiet. But I felt uneasy about the check-in.
Long story short, I clicked the directions on the email that Airbnb sent to me and somehow it directed me to a wrong address. It was midnight and I was anxious to find the correct place. I called the host several times and no one responded. Finally, after struggling for 15-20mins or so, I realized that the address was wrong and I found the correct one in the check-in instructions on Airbnb.
I should also mention that during my entire stay, I never met my host although we kept message communication during the daytime. I heard someone entered the apartment around 2 am in the morning, but never know who stayed at the apartment. I felt a bit unsafe about this and wish the host could inform me about this in advance.