Dan and Rebecca are very nice people. They have prepared for guests a neat little handbook of non-touristy places to visit and dine in which made our transition to Berlin seem seamless. He even periodically checked up on us to make sure all was okay. What we liked the most was the flat location. It's not central, but it's easy to get on the underground, and the neighborhood is very cool. There's also plenty of parking around. Overall a very positive experience!