We had a lovey time staying at nicks place. The location couldn't be more ideal, just a few minutes to the major museums and ability to walk anywhere in the city. He was extremely friendly and helpful with recommendations. For two 20-somethings it was great, but I think he had some other couch surfers or friends visiting while we were there, so sometimes it was 4 to 5 people for one bathroom. Fine for us, but something to consider.
Definitely recommend staying with Nick!!