We had a good stay overall at Korina's apartment. She was responsive for the most part. The house was clean and in a great location. There are a few things that could have been better. The apartment could use an elevator and there was no heat and it felt very cold. We had an early morning flight to catch and were locked in the building ( it was our fault ) and had to miss our flight. We tried reaching the host frantically to have them come and let us out. Airbnb support had also tried reaching the host with no luck. We understand that it was our fault but it would have been helpful if she had responded on time. We wonder what would happen if it was a true emergency.