We stayed in Mariko's apartment for two months. It was such a wonderful experience. Mariko was so friendly and obliging to our questions. You couldn't ask for a better host.
The apartment was amazing, in a nice quiet (and safe) area. Close to the subway that can get you to Times Square and Midtown in about 10 minutes. And a nice little stroll to Central Park and riverside park even closer.
The apartment was nice and tidy, well stocked with kitchen with lots of utensils. Everything you need. We highly recommend staying with Mariko.