Great location with two train stations nearby that links to all the other train lines. Just 20mins by train to Haneda Airport which is only a 5mins walk from the apartment. Plenty of restaurants just next to the Keikyu-Kamata train station.
Even though we can hear the trains every day but it wasn't a real bother and my kids slept through peacefully. The apartment is fully equipped and the kitchen is well stocked so we have no issue preparing our meals every morning and night for the kids. There is a long street filled with supermarkets, eateries, dental, salon and they even have a children's clinic next to the Kojiya train station. Overall a great stay and will definitely consider staying again in future.