We were a group of 5 and had a fantastic time at Keiko's flat. Because I arrived a day before everyone else, Keiko and her son took me out for dinner and drinks at a local ramen bar. They were both very kind and hospitable. After the rest of the group arrived Keiko continued to check in every now and then to make sure we were okay.

The flat was super clean, had fast wifi, and is 30 seconds away from Minowa station, perfect for Ueno, Akihabara etc. Would definitely stay again. Thanks Keiko!