Dieter's flat is absolutely stunning and perfectly located. He has used the space in the most efficient and beautiful manner. Dieter is also really clear about what he expects from you, you get a list of the do and don't do before you get there, which can only help to get along all the way I can only recommend a stay at his place, and I am planning to go back myself!
Beware, though, you might want to undetake some major work in your own flat when you get home!!