Lovely little penthouse studio with a sunny balcony in a charming neighbourhood. Huge bed. Super clean bathroom with a great shower - I'm 6'3 and the shower was high up enough for me! Not a given in Japan :-). Nice toiletries too. The neighbourhood is awesome - lots of little restaurants and bars all around, a matter of steps from the apartment. Our favourite - Sen - turn right on the main road through Kagurazaka - Waseda - and it's about 20 yards up on the right.
Mas is a great host - speaks perfect English and met us outside the MUFG bank across the road to take us to the apartment, and reappeared in a trice when I messed up with the door code - thanks Mas, my fault!
We are pretty self sufficient but I sure Mas would help with more local eating recommendations if you need it, but just venture out and point and shoot, you can't go wrong...!
We'll definitely be back and will definitely stay here.