SG Premium Kasai is definitely highly recommended for travellers intending to visit Disneyland/Disney SEA. There are direct bus services from Narita Airport to Kasai Station, as well as to & fro Disneyland/Disney SEA from the bus station near Kasai Station.
The apartment is very spacious (3 Adults) with room for our luggages.
Will definitely book SG Premium Kasai again when we visit again!