Ko was an amazing host. From checkin to check out he helped us and was very easy to reach. We even lost our bag on the train and he helped call the train staff and we got it back the next day. His apartment is very well located to reach the hubs of Shinjuku and Shibuya, but the Nishi Ogi area is also full of hidden surprises which Ko will more than happily tell you about. ]
There is a bit of noise from the trains and the Jazz bar downstairs but we still managed to sleep through it and so did our 10 month old daughter.
All in all, a wonderful stay and we'd love to come back!