We thoroughly enjoyed our stay in Martin's flat. We were a group of six friends (all around the age of 30) staying there for a four night trip around New Year's eve and we couldn't have chosen a better place. The location was great and the apartment was perfect for going out and enjoying Berlin. Martin was a very accommodating host and all-round nice guy. It was a fantastic trip and we all remarked on how we would love to go back again. Couldn't recommend it more highly.