Martin is a great host. We enjoyed the 2 days in Berlin next to Potsdamer Platz. During the big storm we could walk home after blue man group. That was fantastic...being S+U independent ... First, it's a strange feeling to live in the ground floor. When we aired the flat somebody looked into the flat :D but with the curtains you can avoid this perfectly. The flat is quiet a lot of space... Especially for 2 people. Thanks a lot!