We stayed at Ryuichi's place for 4 nights in Asakusabashi.
Ruyichi-san was super helpful and personally was there for the check-in (even though there were instructions for self-checking), showed us around the house. The house itself was quite spacious for our small family of 2 adults and 1 child. The kichen was also good compared to the places where we have stayed before (the kitchens usually are very cramped), and the upstairs Japanese style and western style rooms were nice.
The area was easily accessible from Haneda airport and was nicely located to explore Tokyo in a quiet area a walking distance from neighboring stations. Also Akihabara and Asakusa where in a 15 minute walking distance.