I'm a fairly experienced traveler who has relied on AirBnB during international trips for over a decade. This is the first time I've had a negative experience and, while I hate leaving negative reviews, I also want to ensure others are informed of potential issues so they can feel safe and comfortable on their trip. The location of this stay is great - it's walking distance to all the shops and restaurants as well as to local historic attractions. It was also clean and comfortable. However, there were significant challenges to check-in and building access that made me feel very unsafe as a solo female traveler. The digital key that I was asked to use did not initially grant access to my room, so I was unable to check in. I called the number provided several times to request help, but there was no answer and there was no host on-site or alternative contact information. I messaged the host and received a response that they would remotely grant access. While I understand most hosts have access to the facilities while guests are on the premises, it made me feel uncomfortable to know that they could remotely access the room at any time during my stay. After waiting nearly an hour to access my room, I was told a physical key was on the dresser and that this fob would provide access to the building and room for the rest of my stay, which at the time relieved some of my concerns about the reliability of the digital key. However, when I returned to the stay after dinner, my phone was losing charge. The physical fob did not work, nor did the digital key, and my phone died after multiple attempts. I had to re-charge at a local restaurant and return later, when luckily the digital key resumed function and granted building access. I can appreciate the innovation of check-in protocols for increased ease and capacity for hosts, but I hope they will find more reliable means in the future to ensure guests have consistent access to the building and can feel confident in their safety and comfort.