The apartment really close from otsuka station (jr line) you just need turn left from otsuka station and the apartment not far from 7eleven. There are yoshinoya near apartment ( 1minute walk) and many japanese restaurant and kebab front of station.
If you want go shopping there are don quijote store aka donki store ( most popular discount store & tax free in japan) near from apartment, ryo the owner help us find this store. Thank u ryo :) and it just walking 5 minutes from the apartment.
Apartment was big (pretty big for 4 people. There also heater and AC, full equipt kitchen, refrigrator, TV, microwave, rice cooker, & washing machine. Apartment super clean n tidy. Ryo allow to leave our baggage in his office (which is in 1’st floor) while we waiting checking time.
Soon when we go back again to japan we really make this apartment the first sequence to stay :)