Ken's place is great. So clean and comfortable. The apartment is 15' to Shinsuku station (via Keio line's Sasazuka station). The neighbourhood is quite and we felt like home. But much more important than that, Ken is always there to give you a hand. We travelled with a 8 month baby and every single day, we asked Ken for help, giving us very good advice. So, if we ever come back to Tokyo, this is our place to stay!