Ko-san is a wonderful host who takes time to meet and greet you both at check in and check out. The flat is nicely designed with aesthetic and functional touches from the architect in him. The flat is very accessible to Nishi-Ogikubo Station (a place for both foodies and antique/bric-a-brac aficionados). Due to its proximity, one can occasionally hear the trains. Luckily, Ko-san also provisions ear plugs for light slippers. The accessibility far outweighs the noise for me. Ahh, don't forget to check out Tasu Cafe which is a floor below the flat!
Arigatoo gozaimasu, Ko-san!