Our stay in Santorini was super good! Kostantino was a great host and our room was super clean and cozy. We got in pretty late, around 3am, and he was super flexible with our check-in. There was a bit of a problem with our transportation from the port to the hotel because the driver we booked didn't show up but luckily we were able to take a shuttle directly from the port. The next day, hosts apologized and explained that there had been a mix up. They ended up giving us a complimentary ride from the hotel to the port and were really great about it. Overall, amazing. The Black beach is about a 10-15 min walk (there's also a lot of car rental agencies nearby) and Fira is about a 20 min walk away.