We enjoyed staying in the apartment. Everything was exactly as advertised. I addition, Kristina provided a huge list of recommendations for breakfast, dinner and drinks, all close by the apartment. We didn't meet her in person, however she provided support via mail whenever we needed her, so everything went smoothly for us, which we appreciate a lot.
Williamsburg is a great place to stay when you visit New York and the apartment is right in the middle of it. We didn't use the kitchen in the apartment even once, as there were just too many great places to eat out just around the corner.
The apartment is really spacious. The windows of the apartment can't keep the street noise outside. I didn't really hear any noise/music from the bar downstairs itself, but I frequently heard its patrons and other people outside during the evening/night, as well as garbage and delivery trucks in the morning. Earplugs, however, was all it took for a good night's sleep, so that didn't concern us much.
I can only recommend staying here when you visit New York.