I had problems with self check in as the instructions were not clear and key was not in the lock box when I arrived (I had to come back and check twice). No response after contacting the host (Airbnb messaging and via calls/voicemail/sms) and only heard back 5+ hours later. As it was a very cold winter day and I had a small dog, I had to take temporary shelter from freezing weather at a nearby Walgreens. The only option left to me was to call Airbnb support to refund so that I can rebook at a nearby hotel. With the rave reviews from other guests, I thought this would be a seamless experience, and maybe it could still be for others. But factor lots of extra time to wait if you encounter problems with check in or the property.