David & Rick's apartment is stunning and in a really great location. They were excellent hosts and by the end of the stay felt much more like friends. They showed me around, invited me to parties and got me on the guest list to a few special events. I can also imagine that they would be equally comfortable to leave other guests to themselves if they were not feeling as sociable as i was.
If you have any doubts about the room layout, as it is a bit hard to understand from the description and photos; you get a whole floor to yourself, with a bathroom. This is great and pretty private. The sofa bed is not as comfortable as a real bed, but I found it more than enough and fine for anyone but the most fussy guest. If there are more than 2 of you, the couch can be made up to be a good sleeping additional place.