If you're an introvert like me and considering Nicole's houseboat but aren't sure if you'll be comfortable, you have nothing to worry about. It's beautiful and in a fantastic, quiet neighborhood, which is a blessing after fighting crowds all day. She's unobtrusive and open minded, and will make your stay in Amsterdam infinitely better. It's good to have a 'source'. I wish I had the chance to have gotten to know her better and that's not something I often say ;)
Do it, you won't be sorry.